(4E,4aS)-4-Ethylidene-4,4a,5,6-tetrahydro-1α-hydroxy-7,16-dimethyl-1H,3H,7H-6β,11cβ-(epoxymethano)-6aα,11bα-(iminoethano)pyrano[4,3-c]carbazol-12-one
- CAS No.
- 16843-68-8
- Chemical Name:
- (4E,4aS)-4-Ethylidene-4,4a,5,6-tetrahydro-1α-hydroxy-7,16-dimethyl-1H,3H,7H-6β,11cβ-(epoxymethano)-6aα,11bα-(iminoethano)pyrano[4,3-c]carbazol-12-one
- Synonyms
- Isocorymine;(4E,4aS)-4-Ethylidene-4,4a,5,6-tetrahydro-1α-hydroxy-7,16-dimethyl-1H,3H,7H-6β,11cβ-(epoxymethano)-6aα,11bα-(iminoethano)pyrano[4,3-c]carbazol-12-one;1H,3H,7H-6,11c-(Epoxymethano)-6a,11b-(iminoethano)pyrano[4,3-c]carbazol-12-one, 4-ethylidene-4,4a,5,6-tetrahydro-1-hydroxy-7,16-dimethyl-, (1R,4E,4aR,6S,6aS,11bS,11cR)-
- CBNumber:
- CB92241343
- Molecular Formula:
- C22H26N2O4
- Molecular Weight:
- 382.45
- MDL Number:
- MOL File:
- 16843-68-8.mol
Last updated:2023-07-12 17:15:27
(4E,4aS)-4-Ethylidene-4,4a,5,6-tetrahydro-1α-hydroxy-7,16-dimethyl-1H,3H,7H-6β,11cβ-(epoxymethano)-6aα,11bα-(iminoethano)pyrano[4,3-c]carbazol-12-one Chemical Properties,Uses,Production
Description
The alkaloidal extract of Hunteria urnbellata (K Schum) Stapf. may be treated chromatographically to yield this minor constituent which forms colourless crystals when purified from propanol. It is strongly laevorotatory with [α]D - 243°. Two methylimino groups, a hydroxyl and a lactone ring are present. The base gives a crystalline O-acetate, m.p. 160°C. The original structure has been revised to that given above on the basis of NMR and mass spectra.
References
Bevan et al., Chern. Ind., 603 (1965) Revised structure: Bevan et al., Tetrahedron, 23,3809 (1967)
(4E,4aS)-4-Ethylidene-4,4a,5,6-tetrahydro-1α-hydroxy-7,16-dimethyl-1H,3H,7H-6β,11cβ-(epoxymethano)-6aα,11bα-(iminoethano)pyrano[4,3-c]carbazol-12-one Preparation Products And Raw materials
Raw materials
Preparation Products
(4E,4aS)-4-Ethylidene-4,4a,5,6-tetrahydro-1α-hydroxy-7,16-dimethyl-1H,3H,7H-6β,11cβ-(epoxymethano)-6aα,11bα-(iminoethano)pyrano[4,3-c]carbazol-12-one
Isocorymine
1H,3H,7H-6,11c-(Epoxymethano)-6a,11b-(iminoethano)pyrano[4,3-c]carbazol-12-one, 4-ethylidene-4,4a,5,6-tetrahydro-1-hydroxy-7,16-dimethyl-, (1R,4E,4aR,6S,6aS,11bS,11cR)-
16843-68-8