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Communication | Regular issue | Vol 26, No. 6, 1987, pp.1487-1489
Published online, 1st January, 1970
DOI: 10.3987/R-1987-06-1487
Stereochemistry of the Dibenzopyrrocoline Alkaloids Cryptaustoline and Cryptowoline

Seiichi Takano, Shigeki Satoh, Yoshiteru Oshima, and Kunio Ogasawara

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan


Stereochemistry of the dibenzopyrrocoline alkaloids, (-)-cryptaustoline (1) and (-)-cryptowoline (2), isolated from the Australian shrub Cryptocaria bowiei is deduced both as 7R,13S configuration with cis B/C ring structure based on the analysis of proton-nmr spectra of synthetic materials.