Synonyms: N-a-Boc-N--4-methoxy-2,3,6-trimethyl;N-α-Boc-N-ω-4-methoxy-2,3,6-trimethyl benzenesulfonyl-D-arginine;N-.ALPHA.-BOC-N-.OMEGA.-4-METHOXY-2,3,6-TRIMETHYLBENZENESULFONYL)-D-ARGININE;(R)-2-(tert-butoxycarbonylamino)-5-(3-(4-methoxy-2,3,6-trimethylphenylsulfonyl)guanidino)pentanoic acid