127806-70-6
2H-1-Benzopyran-6-carbonitrile, 4-bromo-3,4-dihydro-2,2-dimethyl-
→
~78%
129462-74-4
4-azido-2,2-dimethyl-3,4-dihydrochromene-6-carbonitrile
33143-29-2
2,2-二甲基-2H-1-苯并吡喃-6-甲腈