上游原料
Diethyl malonate(2R)-2-(Chloromethyl)oxirane; (R)-Epichlorohydrinethyl (1S,5R)-2-oxo-3-oxabicyclo[3.1.0]hexane-1-carboxylateethyl (1R,2R)-1,2-bis(hydroxymethyl)cyclopropanecarboxylateethyl (1R,7S)-4,4-diphenyl-3,5-dioxabicyclo[5.1.0]octane-1-carboxylate[(7S)-4,4-diphenyl-3,5-dioxabicyclo[5.1.0]oct-1-yl]methanol(1R,7S)-1-(bromomethyl)-4,4-diphenyl-3,5-dioxabicyclo[5.1.0]octane5-[(E)-2-bromoethenyl]-2,4(1H,3H)-pyrimidinedione5-[(E)-2-bromoethenyl]-1-[[(7S)-4,4-diphenyl-3,5-dioxabicyclo[5.1.0]oct-1-yl]methyl]-2,4(1H,3H)-pyrimidinedione
