To test the effectivity of the chiral amine 11 purification approach via distillation, D-prolinol was acquired from three different vendors (A, B, and C) and used for the in-house synthesis of the (R)-2-(methoxymethyl)pyrrolidine (11). The goal was to confirm if reproducible results could be obtained independent of where the starting material was coming from, as long as the described purification was being carried out. The distilled chiral amine 11 obtained from D-prolinol purchased from Vendors A and C presented very similar analysis results in terms of purity (Table ). The purity by GCHS and chiral purity