β??Carbolines as agonistic or antagonistic benzodiazepine receptor ligands. 1. Synthesis of some 5??, 6??and 7??amino derivatives of 3??methoxycarbonyl?螃漫?carboline (β …

G Settimj, MR Del Giudice, R Ferretti…

Index: Settimj; Del Giudice; Ferretti; Gatta Journal of Heterocyclic Chemistry, 1988 , vol. 25, # 5 p. 1391 - 1397

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Citation Number: 12

Abstract

Abstract Condensation of diethyl formylamino-or diethyl acetylaminomalonate with 4-, 5-or 6- nitrogramine 1 afforded the diethyl formylamino-or the diethyl acetylamino [(nitroindol)-3- ylmethyl] malonates 2; reduction of the nitro group followed by N-formylation or acetylation of the resulting amino compounds 3, led to the 4-, 5-and 6-acylamino derivatives 4.