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Marine organic chemistry 4. isolation of 20 r 5 alpha pregn 9 11 ene 3 beta 6 alpha 20 triol from the saponins of starfish asterias forbesi and asterias vulgaris and its synthesis

Apsimon, J.W.; Badripersaud, S.; Buccini, J.A.; Eenkhoorn, J.; Gilgan, M.W.

Canadian Journal of Chemistry 58(23): 2703-2708

1980

ISSN/ISBN: 0008-4042
Accession: 005853504
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A minor constituent of the saponin hydrolysate of the starfishes A. forbesi and A. vulgaris is (20R)-5.alpha.-pregn-9(11)-ene-3.beta.,6.alpha.,20-triol by synthesis from 11-oxoprogesterone. The occurrence of the reduced progesterone side chain could have implications concerning the origins of progesterone-type compounds in saponin hydrolysates from starfish.

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Related References

Apsimon, J.W.; Buccini, J.A.; Badripersaud, S. 1973: Marine organic chemistry part 1 isolation of 3 beta 6 alpha di hydroxy 5 alpha pregn 9 11 en 20 one from the saponins of the starfish asterias forbesi a rapid method for extracting starfish saponins Canadian Journal of Chemistry 51(6): 850-855
Apsimon, J.W.; Eenkhoorn, J.A. 1974: Marine organic chemistry part 2 synthesis of 3 beta 6 alpha di hydroxy 5 alpha pregn 9 11 en 20 one the major sapogenin of the starfish asterias forbesi Canadian Journal of Chemistry 52(24): 4113-4116
ApSimon, JW.; Buccini, JA.; Badripersaud, S. 1973: Marine organic chemistry: isolation of 3 ss, 6a-dihydroxy-5a pregn-9(11)-en-20-one from the Saponins of the starfish Asterias forbesi: a rapid method for extracting starfish saponins Food-Drugs Sea Conf Proceedings 1972: 139-146
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Hand, G.S. 1968: Correlations between germ layer differentiation and sequential synthesis of ribonucleic acid during embryogenesis of the starfish, Asterias forbesi Dissertation Abstracts International B, The Sciences and Engineering 28: 3526