p. 7829 - 7832
(1993)(S)-2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-6-(3-(2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-ylsulfonyl)guanidino)hexanoic acid
(S)-2-(tert-butoxycarbonylamino)-5-(3-(2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-ylsulfonyl)guanidino)pentanoic acid
C40H52N4O13S
C41H54N4O13S2
C21H26N2O3S2