A Synthetic Route to (±)-Clavizepine through a Dibenzoxepine Intermediate
摘要:
A new synthesis of (+/-)-clavizepine (1a), based on the dibenzoxepinediol 10 as main intermediate is described. The key step is the contraction of the oxepine ring to give the xanthene-9-carboxyaldehyde 11, on which the nitrogenated ring can be readily assembled.
A Synthetic Route to (±)-Clavizepine through a Dibenzoxepine Intermediate
摘要:
A new synthesis of (+/-)-clavizepine (1a), based on the dibenzoxepinediol 10 as main intermediate is described. The key step is the contraction of the oxepine ring to give the xanthene-9-carboxyaldehyde 11, on which the nitrogenated ring can be readily assembled.