(22E,24R)-3α,5-Cyclo-5α-ergosta-22-en-6-one
نویسندگان
چکیده
منابع مشابه
(22E,24R)-3α,5-Cyclo-5α-ergosta-22-en-6-one
In the title mol-ecule, C(28)H(44)O, the two six-membered rings have a chair conformation and the two five-membered rings haveenvelope conformations. The crystal packing exhibits no short inter-molecular contacts. The absolute configuration was assigned to correspond with that of the known chiral centres in a precursor molecule, which remained unchanged during the synthesis of the title compound.
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In the title mol-ecule, C(28)H(44)O, two six-membered rings have regular chair conformations, while the six-membered ring containing the C=C double bond exhibits a distorted chair conformation. The five-membered ring adopts an envelope conformation. In the crystal, weak inter-molecular C-H⋯O inter-actions link mol-ecules into chains along the b axis. The absolute configuration was assigned to c...
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The asymmetric unit of the title compound, C(27)H(45)ClO, consists of two crystallographically independent mol-ecules. In both mol-ecules, the three cyclo-hexane rings in the steroid fused-ring systems adopt chair conformations, while the cyclo-pentane ring adopts a half-chair conformation in one mol-ecule and an envelope conformation in the other. In the crystal, the mol-ecules are linked into...
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The title compound, C(18)H(28)O(4), crystallizes with two mol-ecules in the asymmetric unit. Both mol-ecules have similar conformations of nine-membered rings, which are trans-fused with cyclo-butane fragments. The puckering amplitudes (q2) of the cyclo-butane rings are 0.2451 (2) and 0.2526 (2) Å.
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To improve the therapeutic effect of ergosta-4,6,8(14),22-tetraen-3-one (ergone), a folate-decorated ergone-bovine serum albumin nanoparticles (abbreviated FA-ergone-BSANPs) was prepared. The properties were extensively studied by Zetasizer Nano Particle Size Analyzer and TEM, which indicated the prepared nanoparticles were spherical in shape and uniform in size with a zeta potential of -23.8 m...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536810052906