上游原料
5-(Hydroxymethyl)-2-pyrrolidinoneTriphenylphosphine; Triphenyl phosphinebenzyl 2-bromoacetateBenzyl alcohol; Phenylmethanol[2-(benzyloxy)-2-oxoethyl](triphenyl)phosphonium bromidebenzyl 2-(triphenylphosphoranylidene)acetatebenzyl (E)-3-(5-oxo-2-pyrrolidinyl)-2-propenoate4-Methoxybenzoyl chloride; p-Methoxybenzoyl chloride; 4-Anisoyl chloridebenzyl (E)-3-[1-(4-methoxybenzoyl)-5-oxo-2-pyrrolidinyl]-2-propenoate2-Bromoacetic acidBenzyl alcohol; Phenylmethanol4-Methoxybenzoyl chloride; p-Methoxybenzoyl chloride; 4-Anisoyl chloridedihydro-1H-pyrrolizine-3,5(2H,6H)-dionebenzyl 3-(5-oxo-2-pyrrolidinyl)propanoatebenzyl 3-[1-(4-methoxybenzoyl)-5-oxo-2-pyrrolidinyl]propanoate
