Conformational analysis of methylphenidate: comparison of molecular orbital and molecular mechanics methods.
Kathleen M. GilbertWilliam J. SkawinskiMilind MisraKristina A. ParisNeelam NaikRonald A. BuonoHoward M. DeutschCarol A. VenanziPublished in: J. Comput. Aided Mol. Des. (2004)