
Keywords: سنتز ملانین; OPC; oligomeric proanthocyanidin; MeOH; methanol; EtOH; ethanol; EtOAc; ethyl acetate; AcOH; acetic acid; DMTSF; dimethyl (methylthio) sulfonium tetrafluoroborate; DDQ; 2,3-dichloro-5,6-dicyano-p-benzoquinone; DMAP; 4-(dimethylamino)pyridine; EMEM; Eagleâ