Crystal structure of (20S)-20-(dimethylamino)-3-(tigloylamino)-5α-pregn-2,16-dien-4-one, C28H42N2O2
نویسندگان
چکیده
منابع مشابه
5α-Pregna-1,20-dien-3-one
The title compound, C(21)H(30)O, was isolated from the soft coral Sinularia sp. The mol-ecule contains four alicyclic rings, all trans-fused, among which three six-membered rings are in different distorted chair conformations while a five-membered ring assumes an envelope form.
متن کامل(20S)-20-Acetamido-18-chloro-5α-pregnan-3β-yl acetate
In the title compound, C(25)H(40)ClNO(3), prepared by the thermolysis of (20S)-O,N-diacetyl-20-amino-N-chloro-3β-hydr-oxy-5α-pregnane, the three six-membered rings adopt chair conformations while the five-membered ring is in an envelope conformation. The ester group attached to ring A is in an equatorial position. All the rings are trans-fused. Intra-molecular C-H⋯O and C-H⋯Cl inter-actions occ...
متن کامل(22E,24R)-5α-Ergosta-2,22-dien-6-one
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...
متن کاملCrystal structure of (Z)-3-benzyloxy-6-[(2-hydroxyanilino)methylidene]cyclohexa-2,4-dien-1-one
In the title compound, C20H17NO3, the methyl-idene-cyclo-hexa-2,4-dienone moiety is approximately planar [maximum deviation = 0.0615 (10) Å] and is oriented at diherdral angles of 69.60 (7) and 1.69 (9)° to the phenyl and hy-droxy-benzene rings, respectively. The amino group links with the carbonyl O atom via an intra-molecular N-H⋯O hydrogen bond, forming an S(6) ring motif. In the crystal, th...
متن کامل5α-Hydroxyeudesm-4(15),11(13)-dien-8β,12-olide
The title compound, C(15)H(20)O(3), a sesquiterpene lactone, was isolated from the aerial parts of Carpesium minus Hemsl. (Compositae). The mol-ecule is composed of three rings, with the two cyclo-hexane rings in chair conformations and the cyclo-pentane ring adopting a twist conformation. The A/B ring junction is trans-fused. The absolute configuration shown has been arbitrarily assigned. In t...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures
سال: 2018
ISSN: 2197-4578,1433-7266
DOI: 10.1515/ncrs-2018-0169