上游原料
N-[3-(aminosulfonyl)-5-chloro-2-thienyl]acetamideN-[5-chloro-3-([[(isopropylamino)carbothioyl]amino]sulfonyl)-2-thienyl]acetamide4-acetyl-6-chloro-3-(isopropylamino)-2H-thieno[2,3-e][1,2,4]thiadiazine-1,1(4H)-dione2,5-Dichloro-3-thiophenesulfonyl chloride; 2,5-Dichlorothiophene-3-sulphonyl chlorideN-isopropylguanidine2,5-dichloro-3-([[imino(isopropylamino)methyl]amino]sulfonyl)thiophene