| abstract |
PROBLEM TO BE SOLVED: To efficiently provide xanthocillin analogs having various physiological activities by stereoselectively producing them. SOLUTION: A tin compound represented by formula (1) and a compound represented by formula (2) are condensed in the presence of a group 10 or group 11 metal catalyst to form compound (3), and then dehydrated. To produce the xanthosillin analog (4). [Chemical 1] [Wherein, R 1 , R 2 , R 2a , R 3 , R 9 , R 10 , R 10a each represents a hydrogen atom, an alkyl group, or the like. X represents a halogen atom or the like. ] [Selection figure] None |