| Identification | Back Directory | [Name]
(5α,12β,19α,20R)-2,3-Didehydro-16-methoxy-20-[[(7-methoxy-1,3-benzodioxol-5-yl)carbonyl]oxy]aspidospermidine-3-carboxylic acid methyl ester | [CAS]
55870-82-1 | [Synonyms]
Echitoserpine
(5α,12β,19α,20R)-2,3-Didehydro-16-methoxy-20-[[(7-methoxy-1,3-benzodioxol-5-yl)carbonyl]oxy]aspidospermidine-3-carboxylic acid methyl ester
Aspidospermidine-3-carboxylic acid, 2,3-didehydro-16-methoxy-20-[[(7-methoxy-1,3-benzodioxol-5-yl)carbonyl]oxy]-, methyl ester, (5α,12R,19α,20R)- (9CI) | [Molecular Formula]
C31H34N2O8 | [MOL File]
55870-82-1.mol | [Molecular Weight]
562.61 |
| Chemical Properties | Back Directory | [Melting point ]
154°C | [Boiling point ]
688.341±55.00 °C(Press: 760.00 Torr)(predicted) | [density ]
1.403±0.10 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted) | [pka]
8.499±0.60(predicted) |
| Hazard Information | Back Directory | [Description]
This second alkaloid obtained from the fruit of Alstonia venenata is the 3-methoxy
derivative of the preceding base. It also forms colourless crystals from MeOH and
has a specific rotation of [α] D - 444.5° (c 0.3, CHC13). The ultraviolet spectrum
in ethanolic solution has absorption maxima at 205, 252, 301 and 325 nm with a
shoulder at 220 nm. | [References]
Majumder et at., Tetrahedron, 30, 2761 (1974) |
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