3,4-Dihydro-6,7-dimethoxy-4-methyl-3-oxo-2-quinoxalinecarbonyl azide 、
24,25-二羟基维生素 D3 生成 [(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(2R)-5-[(6,7-dimethoxy-4-methyl-3-oxoquinoxalin-2-yl)carbamoyloxy]-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexyl] N-(6,7-dimethoxy-4-methyl-3-oxoquinoxalin-2-yl)carbamate