151842-31-8 Boc-bspatp L-Phenylalanine, N-((1,1-dimethylethoxy)carbonyl)-4-(tributylstannyl)-, 2,3,5,6-tetrafluorophenyl ester N-((1,1-Dimethylethoxy)carbonyl)-4-(tributylstannyl)-L-phenylalanine 2,3,5,6-tetrafluorophenyl ester tert-Butyloxycarbonyl-4-(tri-n-butylstannyl)-phenylalanine tetrafluorophenyl ester