上游原料
methacrylonitrilemethyl 2-sulfanylacetatemethyl 3-amino-4-methylthiophene-2-carboxylatemethyl 3-(2-chloropropanamido)-4-methylthiophene-2-carboxylate2-Chloropropanoyl chloride; 2-Chloropropionyl chloridemethyl 3-amino-4-methylthiophene-2-carboxylate2-Chloropropanoyl chloride; 2-Chloropropionyl chloride1-propanamine
