56464-19-8Relevant articles and documents
About the Synthesis of N-1-Substituted 3-Aminopyrroles. A Comparison
Almerico, Anna Maria,Cirrincione, Girolamo,Aiello, Enrico,Dattolo, Gaetano
, p. 1631 - 1633 (2007/10/02)
A general method for the preparation of 3-amino-1-methylpyrroles in excellent yields is reported.The key step involves the N-methylation of the nitro derivatives 2, under phase transfer catalysis conditions.
Aminopyrrole derivatives
-
, (2008/06/13)
Pharmacologically-active aminopyrrole derivatives of the formula STR1 wherein: R is selected from hydrogen, (C1-4)alkyl, benzyl and chlorobenzyl; R1 is selected from hydrogen, (C1-4)alkyl, phenyl and phenyl substituted by a radical selected from methyl, ethyl, methoxy, ethoxy, benzyloxy, fluoro, chloro and bromo; R2 and R3 individually represent hydrogen or (C1-4)alkyl or, taken together, represent an isopropylidene, a benzylidene or a chlorobenzylidene radical; R4 is selected from (C2-4)alkanoyl; carbo(C1-3)alkoxy; benzoyl, benzoyl substituted by a radical selected from chloro, methoxy or ethoxy; carbamoyl, methylcarbamoyl and phenyl carbamoyl; R5 is selected from hydrogen, (C1-4)alkyl, carbo(C1-3)alkoxy, carbomethoxymethyl, carbethoxymethyl, trifluoromethyl and carbamoyl, with the proviso that when R is hydrogen, R1 and R5 are methyl and R4 is carbethoxy, R2 and R3 cannot simultaneously represent hydrogen; And a salt thereof with a pharmaceutically acceptable acid. The compounds have anti-inflammatory and CNS-depressant utility. They are also useful as analgesics and antipyretics and display a very low degree of anti-ulcerogenic activity.