(1S)-3,4-Dihydro-1-phenyl-2(1H)-isoquinolinecarboxylic Acid 2,5-Dioxo-1-pyrrolidinyl Ester is an intermediate in the synthesis of ((R)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl)((S)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl)methanone (P309025). ((R)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl)((S)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl)methanone is a possible impurity of solifenacin (S676700) which is a muscarinic M3 receptor antagoinst. Solifenacin is used in treatment of urinary incontinence.
