ethyl 5-[N-[4-(N,N,N'-tri-t-butoxycarbonylamidino)benzoyl]-L-alanyl]-4,5,6,7-tetrahydropyrazolo[4,3-c]pyridin-2-acetate 生成 5-[N-[4-(N,N,N'-tri-t-butoxycarbonylamidino)benzoyl]-L-alanyl]-4,5,6,7-tetrahydropyrazolo[4,3-c]pyridin-2-acetic acid 、
5-[N-(4-amidinobenzoyl)-L-alanyl]-4,5,6,7-tetrahydropyrazolo[4,3-c]pyridin-2-acetic acid.trifluoroacetate