학술저널
7,8-Dioxo-A-norerythrinan의 합성
Synthesis of 7,8-Dioxo-A-norerythrinan
- 대한약학회
- 약학회지
- 제38권 제1호 (1994년)
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1994.0286 - 90 (5 pages)
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7,8-Dioxo-A-norerythrinan (A) was synthesized from acid catalyzed cyclization of 6a-hydroxy-1-(2-phenylethyl)-octahydrocyclo-penta[b]pyrrole-3a-carboxylic acid ethyl ester (B) with concomitant deethoxycarbonylation. The intermediate (B) was a hydroxylated compound of N-acyliminium (C). The unstable pyrrolinium (C) was prepared from oxalylation of the enamine of phenethylamine and ethyl 2-oxocyclopentanecarboxylate.
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