Detail of "601-57-0"

Reference

Sterol composition of the "living fossil" crinoid Gymnocrinus richeri

Sterol composition of the "living fossil" crinoid Gymnocrinus richeri. De Riccardis, F.; Giovannitti, B.; Iorizzi, M.; Minale, L.; Riccio, R.; Debitus, C.; Richer de Forges, B. (Dip. Chim. Sostanze Nat., Univ. Napoli, Naples, Italy). Comp.Several substances are used for example 34347-28-9 and 19044-02-1 which are their cas registry numbers. Biochem. Physiol., B: Comp. Biochem., 100B(3), 647-51 (English) 1991. CODEN: CBPBB8. ISSN: 0305-0491. DOCUMENT TYPE: Journal CA Section: 12 (Nonmammalian Biochemistry) The compn. of sterol mixt. from the living fossil crinoid G. richeri collected off Noumea (New Caledonia) was investigated. The free 3b-OH sterol mixt. was found to contain 14 components, D5 and ring satd. stanols, identified by GC-MS. Cholest-4-en-3-one, cholesta-1,4-dien-3-one, 5a-8a-epidioxy sterols, and 5a-ergosta-7,22-diene-3b,5,6b-triol were also present, their characterization being accomplished by EI-MS and 1H-NMR. The methanol ext. also contained sterol sulfates, which were identified by GC-MS after solvolysis to remove the sulfate group. .

An improved synthesis of 5

An improved synthesis of 5.beta.-cholest-3-ene. Yang, D. T. C.; Kabalka, G. W. (Dep. Chem., Univ. Tennessee, Knoxville, Tenn., USA). Org. Prep. Proced. Int., 9(2), 85-7 (English) 1977. CODEN: OPPIAK. DOCUMENT TYPE: Journal CA Section: 32 (Steroids) Cholest-4-en-3-one tosylhydrazone was reduced with pyrocatecholborane to give 89% 5.beta.-cholest-3-ene.