Abstract:
The invention relates to a crystalline monohydrate of ( 4s )-4-(5-phenyl-1,3,4- thiadiazol-2-yloxy)-1-azatricyclo[3.3.1.1 3,7 ]decane dihydrogen citrate, compositions comprising such compound, and a process for preparing such compound.
Abstract:
In one aspect, the invention relates to a process for preparing 6-O-substituted erythromycin derivatives comprising reacting 2'-substituted and optionally 4'-substituted 9-oxime erythromycin derivatives with an alkylating agent in the presence of a palladium catalyst and phosphine. In another aspect, the invention relates to processes for preparing 6-O-substituted erythromycin ketolides using the palladium-catalyzed alkylation reaction.
Abstract:
In one aspect, the invention relates to a process for preparing 6-O-substituted erythromycin derivatives comprising reacting 2'-substituted and optionally 4'-substituted 9-oxime erythromycin derivatives with an alkylating agent in the presence of a palladium catalyst and phosphine. In another aspect, the invention relates to processes for preparing 6-O-substituted erythromycin ketolides using the palladium-catalyzed alkylation reaction.