2-(2-苯并噁唑氨基)-6-甲基-4(3H)-嘧啶酮

methyl 2-hydroxyimino-3-oxobutanoate

5-O-(cyclopropylmethyl) 3-O-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate

methyl (3E)-3-tritylsulfanyliminobutanoate

5,7-二甲基-2-苯基吡唑并[1,5-a]嘧啶