摘要:
A novel process for the preparation of hydantoin sulfonyl chlorides of general formula (I) wherein R and n are as specified in the description, and certain novel intermediates thereto, are disclosed.
摘要:
A process for making a compound of formula (I), said process comprising a) reacting a compound of formula (II) with: i) a compound of formula (III) by nucleophilic aromatic substitution of X2 and ii) a compound of formula (IV) for example by nucleophilic aromatic substitution b) where necessary, converting X1 to a carboxylic acid; and c) coupling of the carboxylic acid group to an appropriate heterocyclic amine; wherein all variables are as defined in the description.
摘要:
A novel process for the preparation of hydantoin sulfonyl chlorides of general formula (I) wherein R and n are as specified in the description, and certain novel intermediates thereto, are disclosed.
摘要:
The present invention relates to a novel process for the preparation of nizatidine, N-[2-[[[2-(dimethylamino)methyl-4-thiazolyl]methyl]thio]ethyl]-N'-methyl-2-nitro-1,1-ethenediamine, and pharmaceutically acceptable salts thereof, comprising reacting a compound of formula II ##STR1## with a compound of formula III ##STR2## or a salt thereof, in which X represents a leaving group, in the presence of methylamine in the presence of an inert diluent.
摘要:
The present invention relates to a novel process for the preparation of compounds of formula (I) wherein X, Q, R1 and R2 are as defined in the specification, the compounds being useful in the preparation of therapeutic agents. The invention further relates to novel intermediates useful in the preparation of the therapeutic agents.
摘要:
The present invention relates to a novel process for the preparation of compounds of formula (V) wherein X, Q, R1, R1a and R2 are as defined in the specification, the compounds being useful in the preparation of therapeutic agents.
摘要:
A process for making a compound of formula (I), said process comprising a) reacting a compound of formula (II) with: i) a compound of formula (III) by nucleophilic aromatic substitution of X2 and ii) a compound of formula (IV) for example by nucleophilic aromatic substitution b) where necessary, converting X1 to a carboxylic acid; and c) coupling of the carboxylic acid group to an appropriate heterocyclic amine; wherein all variables are as defined in the description.