Fmoc-4-(Boc-methoxy)-L-phenylalanine

Fmoc-4-(tert-butoxycarbonylmethoxy)-Phe-OH

FMOC-4-(TERT-BUTOXYCARBONYLMETHOXY)-L-PHENYLALANINE

N-Fmoc-4-(tert-butoxycarbonylmethoxy)-L-phenylalanine