2-[(7R,10S,16S,19S,22S,25S,28R,31S,37S,43S,46S,49R)-7-[(2-amino-2-oxoethyl)carbamoyl]-49-[[(2S)-2-aminopropanoyl]amino]-10,16-dibenzyl-19-(carboxymethyl)-43-[3-(diaminomethylideneamino)propyl]-25,46-bis[(1S)-1-hydroxyethyl]-37-(hydroxymethyl)-22-[(4-hydroxyphenyl)methyl]-9,12,15,18,21,24,27,30,33,36,39,42,45,48-tetradecaoxo-5,51,56-trithia-8,11,14,17,20,23,26,29,32,35,38,41,44,47-tetradecazatricyclo[26.26.3.13,53]octapentaconta-1(54),2,53(58)-trien-31-yl]acetic acid