90057-07-1
2-甲氧基-3,7-二氢吡咯并[2,3-d]嘧啶-4-酮
→
~79%
90057-08-2
4-chloro-2-methoxy-7H-pyrrolo[2,3-d]pyrimidine
52133-67-2
2-氰基-4,4-二乙氧基丁酸乙酯
90057-09-3
2,4-二甲氧基-7h-吡咯并[2,3-d]嘧啶