methyl 5-[1-hydroxy-2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-2-methoxybenzoate hydrochloride 、 Methyl 5-[1-hydroxy-2-[4-(2-methylphenyl)-1-piperazinyl]ethyl]-2-methoxybenzoate hydrochloride 、
methyl 5-[1-hydroxy-2-(4-phenyl-1-piperazinyl)ethyl]-2-methoxybenzoate 以above results in the preparation of 5-[1-hydroxy-2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-2-methoxybenzamide hydrochloride的产率得到5-[1-hydroxy-2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-2-methoxybenzamide hydrochloride