@article {7186,
	title = {CONTIGNASTEROL, A HIGHLY OXYGENATED STEROID WITH THE UNNATURAL 14-BETA CONFIGURATION FROM THE MARINE SPONGE PETROSIA-CONTIGNATA THIELE, 1899},
	journal = {Journal of Organic Chemistry},
	volume = {57},
	number = {2},
	year = {1992},
	note = {ISI Document Delivery No.: HA466Times Cited: 56Cited Reference Count: 18},
	month = {Jan},
	pages = {525-528},
	type = {Article},
	abstract = {Contignasterol (1), a highly oxygenated steroid with the {\textquoteright}{\textquoteright}unnatural{\textquoteright}{\textquoteright} 14-beta proton configuration and a cyclic hemiacetal functionality in its side chain, has been isolated from the marine sponge Petrosia contignata. The structure of contignasterol was elucidated via spectroscopic studies of its tetraacetate 2 and its reduction product pentaacetate 5. Contignasterol (1) is the first example of a naturally occurring steroid with the {\textquoteright}{\textquoteright}unnatural{\textquoteright}{\textquoteright} 14-beta proton configuration.},
	keywords = {C-13 ASSIGNMENTS, H-1, NMR-SPECTROSCOPY},
	isbn = {0022-3263},
	url = {<Go to ISI>://A1992HA46600024},
	author = {Burgoyne, D. L. and Andersen, R. J. and Allen, T. M.}
}
