N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-N'-2,2,4,6,7-PENTAMETHYLDIHYDROBENZOFURAN-5-SULFONYL-D-ARGININE;N-ALPHA-(9-FLUORENYLMETHOXYCARBONYL)-N-OMEGA-2,2,4,6,7-PENTAMETHYLDIHYDROBENZOFURAN-5-SULFONYL-D-ARGININE;N-ALPHA-9-FLUORENYLMETHOXYCARBONYL-NG-2,2,4,6,7-PENTAMETHYLDIHYDROBENZOFURAN-5-SULFONYL-D-ARGININE;N-ALPHA-FMOC-N-OMEGA-(2,2,4,6,7-PENTAMETHYLDIHYDROBENZOFURAN-5-SULFONYL)-D-ARGININE;N-ALPHA-FMOC-N-OMEGA-PBF-D-ARGININE;N-ALPHA-FMOC-N'-2,2,4,6,7-PENTAMETHYLDIHYDROBENZOFURAN-5-SULFONYL-D-ARGININE;N-ALPHA-FMOC-NG-2,2,4,6,7-PENTAMETHYLDIHYDROBENZOFURAN-5-SULFONYL-D-ARGININE;N5-[[[(2,3-Dihydro-2,2,4,6,7-pentamethyl-5-benzofuranyl)sulfonyl]amino]iminomethyl]-N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-D-ornithine