Tobacco Chemistry. 13. 8,13-Epoxylabd-14-en-12-one and 8,13beta-Epoxylabd-14-en-12-one, Two New Diterpenoids from Tobacco.
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چکیده
منابع مشابه
3α-Hydroxy-ent-atis-16-en-14-one
The title compound, C(20)H(30)O(2), is an ent-atisane diterpenoid which was isolated from the roots of Euphorbia kansuensis. The mol-ecule contains five six-membered rings, among which three six-membered rings of the bicyclo-[2.2.2]octane unit adopt boat conformations and two cyclo-hexane rings adopt chair conformations. In the crystal structure, mol-ecules are connected by inter-molecular O-H⋯...
متن کامل9-Hydroxy-4,8-dimethyl-12-(pyrrolidin-1-ylmethyl)-3,14-dioxatricyclo[9.3.0.02,4]tetradec-7-en-13-one
The title compound, C(19)H(29)O(4), was synthesized from 9α-hy-droxy-parthenolide (9α-hy-droxy-4,8-dimethyl-12-methylen-3,14-dioxatricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule is built up from two fused five- and ten-membered rings with the pyrrolidin-1-ylmethyl group as a substituent. The fi...
متن کامل9-Hydroxy-4,8-dimethyl-12-(piperidin-1-ylmethyl)-3,14-dioxatricyclo[9.3.0.02,4]tetradec-7-en-13-one
The title compound, C(20)H(31)NO(4), was synthesized from 9α-hy-droxy-parthenolide (9α-hy-droxy-4,8-dimethyl-12-methylen-3,14-dioxa-tricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule is built up from fused five-and ten-membered rings with the pipyridin-1-yl-methyl group as a substituent. The ten-m...
متن کامل12-Anilinomethyl-9α-hydroxy-4,8-dimethyl-3,14-dioxatricyclo[9.3.0.02,4]tetradec-7-en-13-one
The title compound, C(21)H(27)NO(4), was synthesized from 9α-hy-droxy-parthenolide, which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The asymmetric unit contains two independent mol-ecules. In each, the ten-membered ring displays an approximative chair-chair conformation. Each of the five-membered rings adopts a flattened envelope conformation, the C(H)-C...
متن کامل12-Nitromethyl-14-deoxyandrographolide
In the mol-ecule of the title compound {systematic name: 3-[2-(6-hydr-oxy-5-hydroxy-methyl-5,8a-dimethyl-2-methyl-ene-per-hydro-1-napth-yl)-1-(nitro-meth-yl)eth-yl]-2(4H)-furan-one}, C(21)H(31)NO(6), the cyclo-hexane rings have chair conformations. Intra-molecular O-H⋯O hydrogen bonding results in the formation of a six-membered non-planar ring with a twist conformation. In the crystal structur...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1972
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.26-0832