Pharmaceutical ChemicalsChina Sitagliptin Intermediate Boc- (R) -3-Amino-4- (2, 4, 5-TRIFLUORO-PHENYL) -Butyric Acid CAS No. 486460-00-8, Find details about China 486460-00-8, Pharmaceutical Chemicals from Sitagliptin Intermediate Boc- (R) -3-Amino-4- (2, 4, 5-TRIFLUORO-PHENYL) -Butyric Acid CAS No. 486460-00-8