Title: Ormosinine

CAS Registry Number: 14350-67-5

CAS Name: 21-Ormosanin-20-yl panamine

Molecular Formula: C40H66N6

Molecular Weight: 630.99

Percent Composition: C 76.14%, H 10.54%, N 13.32%

Literature References: From seed of Ormosia dasycarpa Jacks., Leguminosae: Hess, Merck, Ber. 52, 1976 (1919); from O. panamensis Benth., Leguminosae: Lloyd, Horning, J. Am. Chem. Soc. 80, 1506 (1958). Structural studies: Wilson, Chem. Ind. (London) 1965, 472; Tetrahedron 21, 2561 (1965). Composed of one molecule of panamine and one molecule of ormosanine; NMR elucidation of structure: N. S. Bhacca et al., J. Am. Chem. Soc. 105, 2538 (1983).

Properties: Needles from ethyl acetate, mp 219-220°. [a]25436 +16.0°. [a]25589 +8.9° (c = 1.29 in chloroform). Sol in chloroform; slightly sol in ether. Practically insol in water, alcohol. Sublimes to panamine.

Melting point: mp 219-220°

Optical Rotation: [a]25436 +16.0°; [a]25589 +8.9° (c = 1.29 in chloroform)