英文别名Tolterodine impurity 1; (S)-5-HYDROXYMETHYL TOLTERODINE; Fesoterodine Diol (S)-Isomer; Tolterodine 5-Hydroxymethyl Analog (S)-Isomer; Fesoterodine Impurity 21; Tolterodine 5-Hydroxymethyl (S)-Isomer; Benzenemethanol, 3-[(1S)-3-[bis(1-methylethyl)amino]-1-phenylpropyl]-4-hydroxy-