5553. Lochnericine

Nomenclature

CAS number: 72058-36-7
(5α,6α,7α,12β,19α)-2,3-Didehydro-6,7-epoxyaspidospermidine-3-carboxylic acid methyl ester.
C21H24N2O3; mol wt 352.43.
C 71.57%, H 6.86%, N 7.95%, O 13.62%.

Description and references

Indole alkaloid. From Vinca rosea Linn. (Catharanthus roseus G. Don.), Apocynaceae: Gorman et al., J. Am. Pharm. Assoc. 48, 256 (1959); Svoboda et al., ibid. 48, 659 (1959); Moza, Trojánek, Collect. Czech. Chem. Commun. 28, 1419 (1963). Structure: Moza et al., Tetrahedron Lett. 1964, 2561.

Chemical structure

Properties

Crystals from methanol, dec 190-193°. [α]D27 432° (chloroform). pKa in 66% DMF: 4.2. uv max (ethanol): 227, 299, 328 nm (log ε 4.10, 4.15, 4.32).