2-[[(2R)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(4S)-4-[[4-[(2-amino-4-oxo-3H-pteridin-6-yl)methylamino]benzoyl]amino]-4-carboxybutanoyl]amino]-3-carboxypropanoyl]amino]-3-carboxypropanoyl]amino]-3-carboxypropanoyl]amino]-3-[2-[(methoxyamino)carbamoyloxy]ethyldisulfanyl]propanoyl]amino]-6-[3-[2-[[(4S,6S,7R,8S)-8-(carbamoyloxymethyl)-7-methoxy-12-methyl-10,13-dioxo-2,5-diazatetracyclo[7.4.0.02,7.04,6]trideca-1(9),11-dien-11-yl]amino]ethyldisulfanyl]propanoylamino]hexanoic acid