(20S)-22-Acetoxymethyl-6β-methoxy-3α,5-dihydro-3′H-cyclopropa[3α,5]-5α-pregnane
نویسندگان
چکیده
منابع مشابه
(20S)-22-Acetoxymethyl-6β-methoxy-3α,5-dihydro-3′H-cyclopropa[3α,5]-5α-pregnane
In the title steroid derivative, C(25)H(40)O(3), the fused cyclo-propane unit that corresponds to a part of the A ring has a β-configuration and the associated cyclo-pentane ring an envelope-shaped conformation.
متن کامل(20S)-22-Iodomethyl-6β-methoxy-3α,5-dihydro-3′H-cyclopropa[3α,5]-5α-pregnane
In the title steroid derivative, C(23)H(37)IO, the fused cyclo-propane unit that comprises part of the A ring has a β-configuration, and the associated cyclo-pentane ring has an envelope conformation.
متن کامل6β-Acetamido-5α-hydroxycholestan-3β-yl acetate
The title steroid, C(31)H(53)NO(4), was prepared from the corresponding 5α,6α-epoxy-cholestane. The conformation of the six-membered rings is close to a chair form, while the five-membered ring adopts a twist conformation. The hydroxyl and acetamide groups are in axial positions. The nucleophilic species bound to the steroid nucleus at position 6 by the β-face, whereas the hydroxyl group at pos...
متن کاملAndrostane-3β,5α,6β,17β-tetrol trihydrate
The title hydrated tetrol, C(19)H(32)O(4)·3H(2)O, was synthesized by stereoselective reduction of the compound 3β,5α,6β-trihy-droxy-androstan-17-one. All rings are fused trans. The organic mol-ecules are connected head-to-tail along the c axis via O-H⋯O hydrogen bonds. Layers of water mol-ecules in the ab plane inter-connect these chains. A quantum chemical ab initio Roothan Hartree-Fock calcul...
متن کامل3β,5α,6β-Trihydroxyandrostan-17-one
The title compound, C(19)H(30)O(4), is an androstan-17-one derivative synthesized from the dehydro-epiandrosterone through a sequential addition of an oxidant, followed by a trans-diaxial opening of the epoxide generated, with Bi(OTf)(3) (OTf is trifluoro-methane-sulfonate). The six-membered rings have a slightly flattened chair conformation, while the five-membered ring adopts a 14-α envelope ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809020674