dibutyl (3R,4R,5S)-4-acetamido-5-[N2,N3-bis(tert-butoxycarbonyl)guanidino]-3-(1-ethylpropoxy)-1-cyclohexene-1-phosphonate

(3R,4R,5S)-4-acetamido-5-[(tert-butoxycarbonyl)-amino]-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid

4-methyl-2-thioxothiazol-3(2H)-yl (3R,4R,5S)-4-acetamido-5-((tert-butoxycarbonyl)amino)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate