329347-27-5Relevant academic research and scientific papers
Practical synthesis of an orally active CCR5 antagonist, 7-{4-[2-(Butoxy)-ethoxy]phenyl}-N-(4-{[methyl(tetrahydro-2H-pyran-4-yl)amino] methyl}phenyl)-1-propyl-2,3-dihydro-1H-1-benzazepine-4-carboxamide
Ikemoto, Tomomi,Ito, Tatsuya,Nishiguchi, Atsuko,Miura, Syotaro,Tomimatsu, Kiminori
, p. 168 - 173 (2012/12/24)
A practical method of synthesizing 7-{4-[2-(butoxy)ethoxy]-phenyl}-N-(4- {[methyl(tetrahydro-2H-pyran-4-yl)amino]methyl}-phenyl)-1-propyl-2, 3-dihydro-1H-1-benzazepine-4-carboxamide (8), an orally active CCR5 antagonist, has been developed. Methyl 7-bromo-1-propyl-2,3-dihydro-1H-1-benzazepine-4- caboxylate (14a) was synthesized in good yield by the esterification of 4-[(4-bromo-2-formylphenyl)(propyl)amino]butanoic acid (13) followed by an intramolecular Claisen type reaction with 28% sodium methoxide in dimethyl carbonate as a solvent in one pot. The Suzuki-Miyaura reaction of 14a and 1-bromo-4-(2-butoxyethoxy)benzene (10) followed by hydrolysis and amidation gave 8. A new inexpensive method without chromatographic purification was established.
PROCESS FOR THE PREPARATION OF 2,3-DIHYDROAZEPINE COMPOUNDS
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, (2008/06/13)
As a process for preparing 2,3-dihydroazepine compounds at low cost in a simple and easy manner, there is provided a process for the preparation of compounds of the formula: or salts thereof, characterized in that compounds of the formula: or salts thereof are reacted with compounds of the formula: or salts thereof to give compounds of the formula: or salts thereof, which are then subjected to esterification and ring-closing reaction.
