上游原料
ethyl formateethyl acetaten-Butyric acid vinyl ester; Vinyl n-butyrate; Vinyl butyrate2-hydroxypropanenitrileethyl 2-hydroxypropanimidoate2-hydroxypropanimidamidesodium (E)-3-ethoxy-3-oxo-1-propen-1-olate2-(1-hydroxyethyl)-4(3H)-pyrimidinone2-[(1S)-1-hydroxyethyl]-4(3H)-pyrimidinone(1R)-1-(6-oxo-1,6-dihydro-2-pyrimidinyl)ethyl butyratesodium (E)-3-ethoxy-3-oxo-1-propen-1-olate(1R)-1-(6-oxo-1,6-dihydro-2-pyrimidinyl)ethyl butyrate(2R)-2-hydroxypropanamideethyl (2R)-2-hydroxypropanimidoate(2R)-2-hydroxypropanimidamide2-[(1R)-1-hydroxyethyl]-4(3H)-pyrimidinone(1R)-1-(6-oxo-1,6-dihydro-2-pyrimidinyl)ethyl butyrate(1R)-1-(4-{[(trifluoromethyl)sulfonyl]oxy}-2-pyrimidinyl)ethyl butyrate(3R,5S)-1-benzyl-3,5-dimethylpiperazine 2-methyl-4,6-bis(trichloromethyl)-1,3,5-triazine(1R)-1-(4-{(2R,6S)-2,6-dimethyl-4-[4-methyl-6-(trichloromethyl)-1,3,5-triazin-2-yl]piperazinyl}-2-pyrimidinyl)ethyl butyrate