Direct semi-synthesis of the anticancer lead-drug protoapigenone from apigenin, and synthesis of further new cytotoxic protoflavone derivatives

Hunyadi Attila, Chuang Da-Wei, Dankó Balázs Ödön, Chiang Michael Y, Lee Chia-Lin, Wang Hui-Chun, Wu Chin-Chung, Chang Fang-Rong, Wu Yang-Chang
2011