RETRACTED: Isolation of optically active nevirapine, a dipyridodiazepinone metabolite from the seeds of Cleome viscosa

This article has been retracted: please see Elsevier Policy on Article Withdrawal (). This article has been retracted at the request of the author. The author wishes to retract this publication due to doubt created in the scientific community on the origin of nevirapine from the seeds of Cleome viscosa.