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Communication | Special issue | Vol 15, No. 1, 1981, pp.191-194
Published online, 1st January, 1970
DOI: 10.3987/S-1981-01-0191
Chitraline and 1-O- Methylpakistanine, Two Aporphine-Benzyliso-quinoline Alkaloids

S. Fazal Hussain, Lajber Khan and Maurice Shamma*

*Department of Chemistry, The Pennsylvania State University, York Campus, P1031 Edgecomb Avenue, York, Pennsylvania 17403, U.S.A.


Berberis orthobotrys has yielded the new alkaloid chitraline (2) which is the first known naturally occurring analog of pakistanine (1). Another alkaloid present is 1-O-methylpakistanine (4) which had been previously derived in vitro from pakistanamine (5) through an acid catalyzed dienone-phenol rearrangement. Known alkaloids also present in the plant are pakistanamine (5) and pakistanine (1).