上游原料
3-Methyl-2-pyridinylamine; 3-Methyl-2-pyridinamine; 2-Amino-3-picoline; 2-Amino-3-methylpyridineethynyl(trimethyl)silane；trimethylsilyl acetylene4-iodobenzenesulfonyl chloridemethyl 2-hydroxy-5-iodobenzoatemethyl 2-hydroxy-5-[2-(trimethylsilyl)ethynyl]benzoatemethyl 5-ethynyl-2-hydroxybenzoate4-iodo-N-(3-methyl-2-pyridinyl)benzenesulfonamidemethyl 2-hydroxy-5-[2-(4-[[(3-methyl-2-pyridinyl)amino]sulfonyl]phenyl)ethynyl]benzoate
