benzyl 2-[2-(4-amidinophenylcarbamoyl)-6-methoxy-3-pyridyl]-5-[[5-(1-methylethyl)-2,2-dimethyl-1,3-dioxan-5-yl]carbamoyl]benzoate 生成 2-[2-(4-amidinophenylcarbamoyl)-6-methoxy-3-pyridyl]-5-[(1,1-bis(hydroxymethyl)-2-methylpropyl)carbamoyl]benzoic acid hydrochloride