acetic acid,5-methoxypenta-2,4-dien-1-ol

diethyl (1SR,2RS,5RS,6SR)-2-hydroxymethyl-5-methoxy-8,8-dimethyl-7,9-dioxa-3,4-diazabicyclo<4.3.0>nonane-3,4-dicarboxylate

diethyl (3RS,6SR)-3-acetoxymethyl-6-methoxy-1,2,3,6-tetrahydropyridazine-1,2-dicarboxylate

diethyl (3RS,6SR)-3-t-butyldimethylsilyloxymethyl-6-methoxy-1,2,3,6-tetrahydropyridazine-1,2-dicarboxylate

diethyl (1SR,2RS,5RS,6SR)-2-acetoxymethyl-5-methoxy-8,8-dimethyl-7,9-dioxa-3,4-diazabicyclo<4.3.0>nonane-3,4-dicarboxylate