Yoshio Hano, Taro Nomura and Shinichi Ueda
J. Chem. Soc., Chem. Commun., 1990, 610-613
DOI:
10.1039/C39900000610,
Paper
Addition of O-methylated chalcone, as precursors, to Morus alba cell cultures has resulted in the formation of optically active O-methyl derivatives of chalcomoracin (1) and kuwanon J (2), corroborating the pivotal step of the biosynthesis of (1) and (2) to be the enzymic Diels–Alder reaction.
