上游原料
ethyl 3-bromo-2-oxopropanoate;ethyl 3-bromopyruvate;Bromopyruvic acid ethyl ester;ethyl 3-bromopyruvate;ethyl bromopyruvate(2R,3R,4R,5S)-5-(acetoxy)-4-(benzoyloxy)-2-[(benzoyloxy)methyl]tetrahydro-3-furanyl benzoate(2S,3S,4R,5R)-4-(benzoyloxy)-5-[(benzoyloxy)methyl]-2-cyanotetrahydro-3-furanyl benzoate(2R,3S,4R,5R)-2-(aminocarbothioyl)-4-(benzoyloxy)-5-[(benzoyloxy)methyl]tetrahydro-3-furanyl benzoateethyl 2-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-1,3-thiazole-4-carboxylateethyl 2-[(2R,3S,4R,5R)-3,4-bis(benzoyloxy)-5-[(benzoyloxy)methyl]tetrahydro-2-furanyl]-1,3-thiazole-4-carboxylate[(3aR,4R,6S,6aS)-6-cyano-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]methyl benzoateethyl 2-amino-3-sulfanylpropanoateethyl 2-[(3aS,4R,6R,6aR)-6-[(benzoyloxy)methyl]-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-4,5-dihydro-1,3-thiazole-4-carboxylateethyl 2-[(3aS,4R,6R,6aR)-6-[(benzoyloxy)methyl]-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-1,3-thiazole-4-carboxylateethyl 2-[(2R,3R,4S,5R)-5-[(benzoyloxy)methyl]-3,4-dihydroxytetrahydro-2-furanyl]-1,3-thiazole-4-carboxylatemethyl (2R)-2-amino-3-sulfanylpropanoate(2S,3S,4R,5R)-4-(benzoyloxy)-5-[(benzoyloxy)methyl]-2-cyanotetrahydro-3-furanyl benzoate(2S,3R,4R,5R)-2-(acetyloxy)-4-(benzoyloxy)-5-[(benzoyloxy)methyl]tetrahydro-3-furanyl benzoatemethyl 2-{(2R,3S,4R,5R)-3,4-bis(benzoyloxy)-5-[(benzoyloxy)methyl]tetrahydro-2-furanyl}-4,5-dihydro-1,3-thiazole-4-carboxylatemethyl 2-{(2R,3S,4R,5R)-3,4-bis(benzoyloxy)-5-[(benzoyloxy)methyl]tetrahydro-2-furanyl}-1,3-thiazole-4-carboxylate