99011-78-6Relevant articles and documents
Ring Closing and Related Methods and Intermediates
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Page/Page column 35, (2011/11/12)
Methods and intermediates useful for making compounds of the formula: and the preparation of compounds of Formula I, preferably including the formation of intermediate compounds of the formula:
PREPARATION OF 1H-IMIDAZO [4,5-C] QUINOLIN-4-AMINES VIA NOVEL 1H-IMIDAZO [4,5-C] QUINOLIN-4-CYANO AND 1H-IMIDAZO [4,5-C] QUINOLIN-4-CARBOXAMIDE INTERMEDIATES
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Page 12-13, (2008/06/13)
The invention relates to a process for the synthesis of 1H-imidazo[4,5-c] quinoline 4-cyano and 1H-imidazo[4,5-c] quinoline 4- carboxamide intermediates useful in preparing 1H-imidazo[4,5-C] quinoline 4-amines, a process for preparing 1H-imidazo [4,5-C] quinoline 4-amines using such intermediates; and, to the 1H-imidazo[4,5-c] quinoline 4-cyano and 1H-imidazo[4,5-c] quinoline 4- carboxamide intermediates. More particularly, the invention relates to a process for the preparation of 1-isobutyl-1H-imidazo [4,5-C] quinoline 4-amine (Imiquimod) using two intermediates, 1-isobutyl-1H-imidazo[4,5-c]quinoline 4-cyano and 1-isobutyl-1H-imidazo[4,5-c]quinoline 4-carboxamide, and to the said intermediates.