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Paper | Regular issue | Vol 43, No. 4, 1996, pp.781-786
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7325
Three New Purinium Derivatives, Heteromines A, B, and C from Heterostemma brownii

Yun-Lian Lin, Hae-Pyng Lee, Jun-Chih Ou, and Yueh-Hsiung Kuo

*Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C.

Abstract

From the aerial parts of Heterostemma brownii Hay., three new purinium derivatives, heteromines A, B, and C were isolated. Their structures were elucidated as 6-methoxy-7,9-dimethyl-2-dimethylaminopurinium chloride, 6-methoxy-7,9-dimethyl-2-methylaminopurinium chloride, and 2-amino-6-methoxy-7,9-dimethylpurinium chloride on the basis of spectroscopic and chemical methods.