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Communication | Regular issue | Vol 9, No. 9, 1978, pp.1241-1247
Published online, 1st January, 1970
DOI: 10.3987/R-1978-09-1241
Ambiguine and Dihydroajaconine: Two New Diterpenoid Alkaloids from Consolida ambigua

S. William Pelletier,* Rajinder S. Sawhney, and Naresh V. Mody

*Department of Chemistry, Institute for Natural Products Research, The University of Georgia, Chemistry Building, Athens, Georgia 30602-2556, U.S.A.


Chemical investigation of the minor alkaloids of Consolida ambigua has led to the isolation and characterization of two new diterpenoid alkoloids, ambiguine (1) and dihydroajaconine (7). Ambiguine is the first lycoctonine-type alkaloid in which a methoxy group is present at the C(8)-position, and dihydroajaconine is a reduced form of the known alkaloid, ajaconine.