7-ethoxy-4-phenyl-2H-chromen-2-one

diethyl 2-(3-oxopropyl)-2-prop-1-ynylpropanedioate

2H-吡咯并[3,2-b]吡啶-2-酮, 6-氟-1,3-二氢-

3-amino-2-bis(ethoxycarbonyl)methyl-5-fluoropyridine

13-bromotridecanoic acid