Marine Natural Products Lab

Kerr Research Group
Home / Kerr Research Group / Publications


103.  David Overy, Paul Bayman, Russell Kerr and Gerald Bills.  An assessment of natural product discovery from marine (sensu strictu) and marine-derived fungi. Mycology: an International Journal on Fungal Biology, 5, 145-167 (2014).

102.  David P. Overy, Fabrice Berrue, Hebelin CorreaNovriyandi HanifKathryn Hay, Martin Lanteigne, Kathrine McQuilian, Stephanie Duffy, Patricia Boland, Ramesh JagannathanGavin S. CarrMarieke Vansteeland & Russell G. Kerr.  Sea foam as a source of fungal inoculum for the isolation of biologically active natural products.  Mycology: an International Journal on Fungal Biology.  DOI:10.1080/21501203.2014.931893  (2014).

101.   Krista A. Gill, Fabrice Berrué, Jennifer C. Arens and Russell G. Kerr. Isolation and structure elucidation of cystargamide, a lipopeptide from Kitasatospora cystarginea.  J Nat Prod  DOI  10.1021/np500122s (2014).

100. Michelle A. Markus, Jonathan Ferrier, Sarah M. Luchsinger, Jimmy Yuk, Alain Cuerrier, Michael J. Balick, Joshua M. Hicks, K. Brian Killday, Christopher W. Kirby, Fabrice Berrue, Russell G. Kerr, Kevin Knagge, Tanja Gödecke, Benjamin E. Ramirez, David C. Lankin, Guido F. Pauli, Ian Burton, Tobias K. Karakach, John T. Arnason, Kimberly L. Colson.  Distinguishing Vaccinium Species By Chemical Fingerprinting Based on NMR Spectra, Validated with Spectra Collected in Different Laboratories" Planta Medica 80, 732-739 (2014).

99.  Michael R. van den Heuvel, Natacha S. Hogan, Gillian Z. MacDonald, Fabrice Berrue, Rozlyn F. Young, Collin J. Arens, Russell G. Kerr, Phillip M. Fedorak.  Assessing accumulation and biliary excretion of naphthenic acids in yellow perch exposed to oil sands-affected waters.  Chemosphere 95, 619–627 (2014).

98.  E. Marchal, Md. Uddin, D. SMithen, C. Hawco, M. Lanteigne, D. Overy, R. Kerr and A. Thompson.  Antimicrobial activity of non-natural prodigiosenes.  RSC Advances,  3, 22967-22971 (2013). 

97.  Gavin Carr, Fabrice Berrue, Saranyoo Klaiklay, Isabelle Pelletier, Russell G. Kerr.  Natural products with protein tyrosine phosphatase inhibitory activity.  Methods, 65, 229-238 (2013).

96. Rebecca E. Pike, Brad Haltli, and Russell G. Kerr.  Description of Endozoicomonas eunicicola sp. nov. and Endozoicomonas gorgonicola sp. nov., Bacteria Specifically Associated with the Gorgonian Octocorals, Eunicea fusca and Plexaura sp., and an emended description of the genus Endozoicomonas.   Int. Journal of Systematic and Evolutionary Microbiology 63, 4294 - 4302  (2013).

95.  David Forner, Fabrice Berrué, Hebelin CorreaKatherine Duncan, and Russell G Kerr.  Chemical dereplication of marine actinomycetes by LC-HRMS profiling and statistical analysis.  Analytica Chemica Acta, 805, 70 - 79 (2013).

94.  Jennifer Arens, Fabrice Berrue, Jason Pearson and Russell Kerr. Isolation and structure elucidation of satosporin A and B: new polyketides from Kitasatospora griseola. Organic Letters, 15, 3864 - 3867 (2013).

93.  Hebelin Correa, Brad Haltli, Carmenza Duque, Russell Kerr.   Bacterial Community of the Gorgonian Octocoral Pseudopterogorgia elisabethae.  Microbial Ecology 66, 972 – 985 (2013).

92. Ghada EbeadDavid Overy, Russell Kerr.  Westerdykella reniformis sp. nov., producing the antibiotic metabolites melinacidin IV and chetracin B.  IMA Fungus, 189-201 (2012). 

91. Fabrice BerrueMalcolm McCulloch, Patricia Boland, Saskia Hart, Mary Kay Harper, James Johnson, Russell G. Kerr.  Isolation of steroidal glycosides from the Caribbean sponge Pandaros acanthifolium.  J. Nat. Prod. 75, 2094- (2012).

90. Angela Duque-AlarconLory Santiago-Vazque, Russell Kerr.  Microbial community analysis of the octocoral Eunicea fuscaElectronic Journal of Biotechnology, Vol. 15, no. 5 (2012). 

89. Malcolm McCulloch, Brad Haltli, Douglas Marchbank, Russell Kerr.  Evaluation of pseudopteroxazole and pseudopterosin derivatives against Mycobacterium tuberculosis and other pathogens.  Marine Drugs, 11, 1711 – 1728 (2012).

88. Douglas H. MarchbankFabrice Berrue, Russell Kerr.  Eunicidiol, a new anti-inflammatory dilophol diterpene from Eunicea fusca.  J. Nat. Prod. 75 (7), 1289-93 (2012).

87. Hebelin CorreaFabrice Berrué, Brad Haltli, Carmenza Duque, Russell Kerr.  Rapid construction of a library of natural products from the cultivation of 14 bacteria of the phylum Firmicutes, symbionts of the octocoral Pseudopterogorgia elisabethae of Isla de Providencia.  J. Colombian Academy of Science (Revista de la Academia Colombiana de Ciencias), 35(136), 337-348 (2011).

86. Malcolm McCullochFabrice Berrue, Brad Haltli and Russell Kerr. One-pot syntheses of pseudopteroxazoles: a rapid route to non-natural congeners with improved antimicrobial activity.  J. Nat. Prod. 74, 2250-2256 (2011).

85. Fabrice BerrueMalcolm McCulloch, Russell Kerr. Marine diterpene glycosides.  Bioorganic & Medicinal Chemistry 19, 6702-6719 (2011). 

84. Fabrice BerrueSydnor T. Withers, Brad Haltli, Jo Withers, and Russell G. Kerr.  Chemical screening method for invertebrate-associated bacteria involved in the production of secondary metabolites present in the host organism. Marine Drugs, 9, 369-381 (2011).

83. Douglas H. Marchbank and Russell G. Kerr. Semisynthesis of fuscoside B analogues and eunicosides, and analysis of anti-inflammatory activity.  Tetrahedron, 67, 3053-3061 (2011). 

82. Hebelin CorreaFabio Aristizabal, Carmenza Duque and Russell Kerr.  Cytotoxic and Antimicrobial Activity of Pseudopterosins and seco-Pseudopterosins Isolated from the Octocoral Pseudopterogorgia elisabethae of San Andrés and Providencia Islands (SW Caribbean).  Marine Drugs, 9, 334-344 (2011).

81. Jose Lopez, A. Ledger, Lory Santiago-Vázquez, M. Pop, Llanie Ranzer, Richard Feldman, Russell G. Kerr.  Suppression subtractive hybridization PCR isolation of cDNAs from a Caribbean soft coral.  Electronic Journal of Biotechnology, 1418 01 (2011). 

80. Maysoon Saleh and Russell G. Kerr.  Identification of the cyclase product and its first oxidation product in the biosynthesis of fuscol and fuscosides.  Aust. J. Chem. 63, 901-906 (2010). Invited contribution. 

79. Abhijeet S. Kate, Amber C. Kohl and Russell G. Kerr.  A simple and sensitive APCI-LC-MS method for the detection of the antitumor agent, carmustine (BCNU) in rat plasma.  J. Liq. Chromatogr. & Related Technol.  33, 818-824 (2010). 

78. Abhijeet S. Kate, Kelly Richard, Balaji Ramanathan, and Russell G. Kerr.  A halogenated pseudopterane diterpene from the Bahamian octocoral Pseudopterogorgia acerosa.  Can. J. Chem. 88, 318-322 (2010).

77. Jose Lopez, Benoit Mouzon, Peter McCarthy, Russell Kerr.  The many faces of gene expression profiling: transcriptome analyses applied towards elucidating marine organismal interactions and metabolism.  Textbook on Molecular Biotechnology. IK International Publishing House Pvt. Ltd (AUUP), ISBN 978-93-80026-37-4. Pp 287-304 (2009).

76. Abhijeet Kate, Jason Pearson, Balaji Ramanathan, Kelly Richard, Russell Kerr.  Isolation, biomimetic synthesis and biological activity of bis-pseudopterane amines. J. Nat. Prod. 72(7), 1331-1334 (2009). 

75. Fabrice Berrue, Abdelnasser Ibrahim, Patricia Boland and Russell Kerr.  A newly isolated marine Bacillus pumilus SP21: a source of novel lipoamides and other antimicrobial agents.  Pure and Applied Chemistry  81, 1027-1031 (2009).

74. Jamie Frenz and Russell Kerr.  Sesquiterpene variability in the Gorgonian Genus Plexaurella.  Comp. Biochem. and Physiol. C 150, 125-131 (2009)

73. Jose Lopez, Lanie Ranzer, A. Ledger, Schoch, Alan Duckworth, Peter McCarthy and Russell Kerr.   Comparison of Bacterial Diversity within the Coral Reef Sponge, Axinella corrugata and the Encrusting Coral Erythropodium caribaeorum.  Proceedings of the 11th International Coral Reef Symposium. Florida, 1355 - 1359, (2009)

72. Russell Kerr.  Pseudopterosin production: the promise and challenges.  Chapter in “Vision and Future of Investigations in Parasitology and Natural Products” Republic of Columbia, Bogota, pgs 399 – 410, (2009).

71. Fabrice Berrue and Russell G. Kerr.  Dipterpenes from gorgonian corals.  Nat. Prod. Rep., 26, 681–710 (2009). 

70. Llanie K RanzerThomas Brueck, Wolfram Brueck, Jose Lopez, Russell Kerr.  A new prokaryotic farnesyldiphosphate synthase from the octocoral Eunicea fusca: differential display, inverse PCR, cloning and characterization.  Marine Biotechnology, 11, 62 (2009).   

69. Abhijeet Kate, Isabelle Aubry, Michel Tremblay and Russell Kerr. Lipidyl pseudopteranes A-F: isolation, biomimetic synthesis and PTP1B inhibitory activity of a novel class of pseudopteranoids from the gorgonian Pseudopterogrogia acerosa.  J. Nat. Prod., 71, 1977-1982 (2008). 

68. Angela P. Duque-Alarcón, Lory Z. Santiago-Vázquez, Julie Enticknap, Nasser Alam and Russell Kerr Diversity of Coral Eunicea fusca Associated Bacteria Using Culture Dependent Techniques. Res. J. Microbiol. 10: 614-621, (2008).

67. Mohammad Al-GhoulThomas Brueck, Janelle Lauer-Fields, Victor Asirvatham, Claudia Zapata, Russell Kerr and Gregg Fields.  Comparative proteomic analysis of matched primary and metastatic melanoma cell lines.  Journal of Proteome Research7 (9) 4107–4118, (2008).

66. Jamie L. Frenz-RossJulie J. Enticknap and Russell G. Kerr.  The effect of bleaching on the terpene chemistry of Plexaurella fusifera: evidence that zooxanthellae are not responsible for sesquiterpene production.  Marine Biotechnology, 10, 572-578 (2008). 

65. Lory Z. Santiago-VázquezThomas B. Brück, Wolfram M. Brück, Angela P. Duque-Alarcón, Peter J. McCarthy and Russell G. Kerr.  The diversity of the bacterial communities associated with the azooxanthellate hexacoral Cirrhipahtes lutkeni.  Journal of the International Society for Microbial Ecology, 1, 654-659 (2007). 

64. Lory Z. Santiago-VázquezNealie C. Newberger, and Russell G. Kerr. Cryopreservation of the dinoflagellate symbiont of the octocoral Pseudopterogorgia elisabethae.  Marine Biology, 152, 549-556 (2007).

63. Thomas Brueck, Wolfram Brueck, Lory Z. Santiago-Vázquez, Peter McCarthy and Russell G. Kerr.  Diversity of the bacterial communities associated with the azooxanthellate deep water octocorals Leptogorgia minimata, Iciligorgia schrammi and Swiftia exertia.  Marine Biotechnology, 9, (2007). 

62. Xing Dai, Zhongliang Wan, Russell G. Kerr, and Huw M. L. Davies.  Synthetic and isolation studies related to the marine natural products (+)-elisabethadione and (+)-elisabethamine.  J. Org. Chem. 72, 1895-2000 (2007).

61. Lory Z. Santiago-Vázquez,  Llanie K. Ranzer, and Russell G. Kerr. Comparison of two total RNA extraction protocols using the marine gorgonian coral Pseudopterogorgia elisabethae and its symbiont Symbiodinium sp. Electronic Journal of Biotechnology, 9(5), (2006).  

60. M. Isabel Nieto, Noemi Gonzalez, Jamie Rodriguez, Russell G. Kerr and Carlos Jimenez.  New cytotoxic cembranolides: isolation, biogenetic studies and synthesis of analogues.  Tetrahedron 62, 11747-11754 (2006). 

59. Nealie NewbergerLlanie RanzerJennifer Boehnlein and Russell Kerr.  Induction of terpene biosynthesis in the dinoflagellate symbionts of the Caribbean gorgonian corals of the genera Pseudopterogorgia and Eunicea.   Phytochem. 67, 2133-2139 (2006). 

58. Russell G. Kerr, Amber Kohl and Tyrone Ferns.  Elucidation of the biosynthetic origin of the anti-inflammatory pseudopterosins.  J. Ind. Microbiol. Biotechnol. 33, 532-538 (2006). 

57. Thomas Brueck and Russell Kerr.  Purification and kinetic properties of elisabethatriene synthase from the coral Pseudopterogorgia elisabethae.  Comp. Biochem. and Physiol.  Part B 143, 269-278 (2006). 

56. Tyrone Ferns and Russell Kerr.  Oxidations of erogorgiaene in pseudopterosin biosynthesis.  Tetrahedron  61, 12358-12365 (2005). 

55. Jennifer BoehnleinLory Santiago-Vazquez and Russell Kerr.  Diterpene biosynthesis by the dionflagellate symbiont of the Caribbean gorgognian Pseudopterogorgia bipinnata.  Mar. Ecol. Prog. Ser. 303:105-111 (2005). 

54. Tyrone Ferns and Russell Kerr.  Identification of amphilectosins as key intermediates in pseudopterosin biosynthesis.  J. Org. Chem. 70, 6152-6157 (2005). 

53. Russell G. Kerr, Jennifer BoehnleinNealie Newberger and Llanie Ranzer.  Concentrations of anti-inflammatory compounds increased in culture studies of coral, microalgae.  Global Aquaculture Advocate,  70, (2004).

52. Jamie FrenzAmber Kohl and Russell Kerr Kerr; Marine Natural Products as Therapeutic Agents – Part 2. Expert Opinion on Therpeutic Patents; 14, pp 17-33 (2004).

51. Amber Kohl and Russell Kerr.  Identification and characterization of the pseudopterosin diterpene cyclase, elisabethatriene synthase, from the marine gorgonian, Pseudopterogorgia elisabethae.  Arch. Biochem. Biophys. 424, 97-104 (2004). 

50. Maysoon B. Saleh and Russell G. Kerr.  Oxidation of Tyrosine Diketopiperazine to DOPA Diketopiperazine with Tyrosine Hydroxylase.  J. Nat. Prod.  67, 1390-1391 (2004).

49. Amber Kohl and Russell Kerr.  Pseudopterosin biosynthesis: Aromatization of the diterpene cyclase product, elisabethatriene. Marine Drugs, 1, 54-65 (2003).

48. Laura Mydlarz, Robert Jacobs, Jennifer Boehnlein and Russell Kerr.  Evidence that the origin of pseudopterosinn biosynthesis resides in the dinoflagellate symbiont of Pseudopterogorgia elisabethae.  Chemistry and Biology, 10, 1051-1056 (2003).

47. Amber Kohl and Russell Kerr A postulated biosynthetic origin of pseudopterosins and a proposed chemoenzymatic production method.  J. Indust. Microbiol. 30, 495-499 (2003).

46. Athar Ata, Russell Kerr, Claudia Moya and Robert Jacobs.  Identification of anti-inflammatory diterpenes from the marine gorgonian Pseudopterogorgia elisabethae.  Tetrahedron.  59, 11389 (2003).

45. J. Cho, J. Choi, I Kong, S. Park, R. Kerr and Y. Hong.  A procedure for axenic isolation of the marine microalgae Isochrysis galbana from heavily contaminated mass cultures. J. Appl. Phycol. 14, 385-390 (2002).

44. Noemí González, Jaime Rodríguez, Russell G. Kerr and Carlos Jiménez.  Cyclobutenbriarein A, the First Diterpene with a Tricyclo[,6]tetradec-4-ene Ring System from the Gorgonian Briareum asbestinium.  J. Org. Chem.  67, 5117-5123, (2002). 

43. Renee S. Thornton and Russell G. Kerr.  Induction of Pseudopterosin Biosynthesis in the Gorgonian Pseudopterogorgia elisabethae.  J. Chem. Ecol.  28, 2083-2090 (2002). 

42. Jinghai Wen and Russell Kerr.  Purification and Characterization of the Fatty Acid Synthase from Bugula neritinaComp. Biochem. and Physiol. Part B, 128, 445-450 (2001). 

41. Russell Kerr, Amber C. KohlJennifer M. Boehnlein, “Bioactive Compounds from Bryozoans” in “Marine Biotechnolgy” Volume 6, Elsevier, 2001. 

40. Russell Kerr; Biosynthesis of Marine Natural Products, in “Studies in Natural Product Chemistry”, Elsevier Science Publishers, Amsterdam; Vol. 21 pp 293-328 (2000). 

39. Amber Coleman and Russell Kerr.  Radioactivity-guided Isolation and Characterization of the Bicyclic Pseudopterosin Diterpene Cyclase Product from Pseudopterogorgia elisabethae.  Tetrahedron,  56, 9569-9574 (2000).

38. Shanti JeediguntaJoann Krenisky and Russell Kerr.  Diketopiperazines as advanced intermediates in the biosynthesis of ecteinascidins.  Tetrahedron 56, 3303-3307 (2000).

37. Athar Ata and Russell Kerr.  Elisabethamine: a new diterpene alkaloid from Pseudopterogorgia elisabethae.  Tetrahedron Letters 41, 5821-5825 (2000).

36. Samina Naz, Russell Kerr and Ramaswamy Narayanan.  New antiproliferative epoxysterols from Pseudopterogorgia americana.  Tetrahedron Letters 41, 6035-6040 (2000).

35. Athar Ata and Russell Kerr. 12-Acetoxypseudopterolide: A New Diterpene from Pseudopterogorgia elisabethaeHeterocycles53, 717 (2000).

34. Amber C. ColemanLaura Mydlarz and Russell Kerr.  In Vivo and In Vitro Investigations into the Biosynthetic Relatedness of the Pseudopterosins. Organic Letters1, 2173-2175 (1999).

33. Paul Andrade, Robin Willoughby, Shirley Pomponi and Russell Kerr.  Biosynthetic Studies of the Alkaloid, Stevensine, in a Cell Culture of the Marine Sponge Teichaxinella morchella.  Tetrahedron Letters40, 4775-4778 (1999).

32. R.G. Kerr and S.S. Kerr; Marine Natural Products as Therapeutic Agents. Expert Opinion on Therpeutic Patents9, 1207-1222 (1999).

31. Russell Kerr, Richard Vicchiarelli and Stacey Kerr.  Identification and biosynthetic origins of sterols in the marine bryozoan Bugula neritina.  J. Nat. Prod. 62, 468-470, (1999). 

30. Russell Kerr and Kathleen Kelly.  An enzyme-based formaldehyde assay and its utility in a sponge sterol biosynthetic pathway.  J. Nat. Prod. 62, 201-202, (1999).

29. Jens Knauer, Russell Kerr, David Lindley and Paul C. Southgate.  Sterol Metabolism of Pacific Oyster (Crassostrea gigas) Spat. Comp. Biochem. and Physiol.,119B, 81 - 84 (1998).

28. Russell Kerr, Cathy Foss, Shigeki Matsunaga and Nobohiro Fusetani.  Isolation and structure elucidation of epipolasterol and 22,23 dihydroepipolasterol from the marine sponge Epipolasis sp.  Comp. Biochem. and Physiol.,117B, 5651-563 (1997). 

27. Russell Kerr and Lesbeth Rodriguez.  A chemoenzymatic production of 9(11)-secosteroids using and enzyme preparation of the gorgonian Pseudopterogorgia americana.  In Vitro Cellular and Developmental Biology 33, 20A (1997). 

26. Russell Kerr, Lesbeth Rodriguez and Jaelle Kellman.  A chemoenzymatic synthesis of 9(11)-secosteroids using an enzyme extract of the marine gorgonian Pseudopterogorgia americana., Tetrahedron Letters. 37, 8301 (1996).

25. Russell Kerr, Joseph Lawry and Kim Gush.  In vitro biosynthetic studies of the bryostatins, anti-cancer agents from the marine bryozoan Bugula neritina., Tetrahedron Letters. 37, 8305 (1996).

24. Xueshu Zhang, Ruiwen Zhang, Hui Zhao, Hongying Cai, Kimberly Gush, Russell Kerr, George Pettit and Andrew Kraft.  Preclinical Pharmacology of the Natural Product Anticancer Agent Bryostatin 1, an Activator of Protein Kinase C. Cancer Research 56, 802 (1996).

23. Russell Kerr and Neil Miranda.  Biosynthetic studies of ecteinascidins in the marine tunicate Ecteinascidia turbinata.  J. Nat. Prod. 58, 1618 (1995). 

22. Russell Kerr, Kathleen Kelly and Aaron Schulman.  A novel biosynthetic route to pregnanes in the marine sponge Amphimedon compressa.  J. Nat. Prod. 58, 1077 (1995). 

21. Russell Kerr and Zhengjian Chen.  In vivo and in vitro biosynthesis of saponins in Sea Cucumbers (Holothuroidea).  J. Nat. Prod. 58, 172 (1995).

20. Russell Kerr and Michelle Kelly-Borges.  Biochemical and morphological heterogeneity in the Caribbean sponge Xestospongia muta.  Sponges in Time and Space, Proc. Int. Porifera Congress, 4th 65-73 (1994).

19. Russell Kerr, S.L. Kerr, Jane Formont, Martin Riddle and Peter Murphy.  Chemotaxonomic relationships within, and comparisons between, the orders Haplosclerida and Petrosida (Porifera: Demospongiae) using sterol complements.  Biochem. Syst. Ecol.  22, 735 - 52 (1994).

18. R.G. Kerr and P. Southgate; Isolation of gorgosterol from symbiont-free giant clam eggs and larvae. Comp. Biochem. and Physiol 104B, 707 (1993).

17. B.J. Baker and R.G. Kerr; Biosynthesis of Marine Sterols. in "Topics in Current Chemistry" 167, 1-31 (1993).

16. R.G. Kerr and B.J. Baker;  Marine Sterols - A Review.  Nat. Prod. Rep.  8, 465 (1992).

15. R.G. Kerr, S.L. Kerr, S. Malik and C. Djerassi; Biosynthetic Studies of Marine Lipids 38.  Mechanism and Scope of Sterol Side Chain Dealkylation in Sponges; Evidence for Concurrent Alkylation and Dealkylation.  J. Am. Chem. Soc. 114, 299 (1992).

14. R.G. Kerr, S.L. Kerr and C. Djerassi; Biosynthetic Studies of Marine Lipids 26.  Elucidation of the Biosynthesis of Mutasterol, a Sponge Sterol with a Quaternary Carbon in its Side Chain.  J. Org. Chem. 56, 63 (1991). 

13. R.G. Kerr, S.L. Kerr, G.R. Pettit, D.L. Herald, T.L. Groy and C. Djerassi;  Sterols of Marine Invertebrates 63.  Isolation and Structure Elucidation of Sutinasterol, the Major Sterol of the Marine Sponge Xestospongia sp.   J. Org. Chem. 56, 58 (1991).

12. R.G. Kerr, B.J. Baker, S.L. Kerr and C. Djerassi; Biosynthetic Studies of Marine Lipids 29.  Demonstration of Sterol Side Chain Dealkylation Using Cell-Free Extracts of Marine Sponges.  Tetrahedron Lett31, 5425 (1990).

11. R.G. Kerr, I.L. Stoilov, J.E. Thompson and C. Djerassi;  Biosynthetic Studies of Marine Lipids 16.  De Novo Sterol Biosynthesis in Sponges.  Incorporation and Transformation of Cycloartenol and Lanosterol into Unconventional Sterols of Marine and Freshwater Sponges.  Tetrahedron 45, 1893 (1989).

10. S. Malik, R.G. Kerr and C. Djerassi; Biosynthetic Studies of Marine Lipids 19.  Dealkylation of the Sterol Side Chain in Sponges.  J. Am. Chem. Soc. 110, 6895 (1988).

9. M.L. Cordeiro, R.G. Kerr and C. Djerassi; Biosynthetic Studies of Marine Lipids 15.  Conversion of Parkeol (Lanost-9(11),24-dien-3b-ol) to 14a-methylcholest-9(11)-en-3b-ol in the Sea Cucumber Holothuria arenicola.  Tetrahedron Lett. 2159 (1988).