(S)-2-{(S)-1-[N-tert-Butoxycarbonylmethyl-N'-(6-chloro-1,1-dioxo-7-sulfamoyl-1,2,3,4-tetrahydro-1λ6-benzo[1,2,4]thiadiazin-3-ylmethyl)-N'-methyl-hydrazinocarbonyl]-ethylamino}-4-phenyl-butyric acid ethyl ester 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
以62%的产率得到ethyl α-<<2-<2-<<7-(aminosulfonyl)-6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazin-3-yl>methyl>-2-methyl-1-(carboxymethyl)hydrazino>-1-methyl-2-oxoethyl>amino>benzenebutanoate S,S-dioxide hydrochloride