N-t-butoxycarbonyl-L-leucine p-nitrophenyl ester, p-nitrophenyl ester of N-tert-butyloxycarbonyl-L-leucine, BOC-LEUCINE-ONP, N-tBoc-L-leucine 4-nitrophenyl ester, tert-butoxycarbonyl-L-leucine p-nitrophenylester, N-Boc-L-Leucine 4-nitrophenyl ester, BOC-L-LEUCINE 4-NITROPHENYL ESTER, Boc-Leu-ONp, N-TERT-BUTOXYCARBONYL-L-LEUCINE-P-NITROPHENYL ESTER, BOC-L-LEUCINE P-NITROPHENYL ESTER