Title: Isocorypalmine
CAS Registry Number: 53447-14-6
CAS Name: 5,8,13,13a-Tetrahydro-3,9,10-trimethoxy-6H-dibenzo[a,g]quinolizin-2-ol
Additional Names: 3,9,10-trimethoxy-13aa-berbin-2-ol; d-tetrahydrocolumbamine
Molecular Formula: C20H23NO4
Molecular Weight: 341.40
Percent Composition: C 70.36%, H 6.79%, N 4.10%, O 18.75%
Literature References: From tubers of Corydalis cava (L.) Schweigg. & Korte (C. tuberosa DC.) and C. nobilis Pers., Fumariaceae: Gadamer et al., Arch. Pharm. 265, 675 (1927); Manske, Can. J. Res. 18B, 288 (1940). Structure: Späth, Burger, Ber. 59, 1486 (1926). Synthesis of dl-form: Govindachari et al., ibid. 92, 1654 (1959). Configuration: Corrodi, Hardegger, Helv. Chim. Acta 39, 889 (1956).
Properties: Crystals, mp 239-241°. [a]D20 +30.3° (c = 0.4 in chloroform). Sol in alcohol, ether.
Melting point: mp 239-241°
Optical Rotation: [a]D20 +30.3° (c = 0.4 in chloroform)
Derivative Type: dl-Form
Properties: Crystals from methanol, mp 216°.
Melting point: mp 216°
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