反应详情

Analogously to the process described in Example 23, 9.0 g of 2-(2-aminoethoxy)-benzamide and 9.3 g of 2-chloro-3-(2,3-epoxy-propoxy)-pyrazine give 1-[2-(2-carbamoyl-phenyloxy)-ethyl-amino]-3-(2-chloro-3-pyrazinyloxy)-2-propanol, melting point 132°-133° C. The neutral fumaric acid salt prepared therefrom using the calculated amount of fumaric acid crystallises from a mixture of methanol and diethyl ether, melting point 167°-168° C.