上游原料
2-Aminonicotinic acid; 2-Aminopyridine-3-carboxylic acid(2-amino-3-pyridinyl)methanol(2-amino-5-bromo-3-pyridinyl)methanol hydrobromide5-bromo-3-(bromomethyl)-2-pyridinamine; 5-bromo-3-(bromomethyl)-2-pyridinylaminedimethyl malonate；Methyl malonate;Propanedioic acid dimethyl estermethyl 6-bromo-2-oxo-1,2,3,4-tetrahydro[1,8]naphthyridine-3-carboxylate6-bromo-3,4-dihydro[1,8]naphthyridin-2(1H)-onetert-butyl acrylatetert-butyl (E)-3-(7-oxo-5,6,7,8-tetrahydro[1,8]naphthyridin-3-yl)-2-propenoate(E)-3-(7-oxo-6,8-dihydro-5H-1,8-naphthyridin-3-yl)acrylic acid hydrochloride3-(7-oxo-6,8-dihydro-5H-1,8-naphthyridin-3-yl)acrylic acid hydrobromideN-methyl-N-(3-methylbenzofuran-2-ylmethyl)-amine3-methylbenzofuran-2-carboxylic acidN,3-dimethylbenzofuran-2-carboxamide3-methylbenzofuran-2-carbaldehyde
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