4OH-Pyran2one, BOC-AlaPhCH(c-Pr) deriv. AIDS-028335 AIDS028335 N-[3-[[3-[Cyclopropyl[4-hydroxy-2-oxo-6-[1-(phenylmethyl)propyl]-2H-pyran-3-yl]methyl]phenyl]amino]-2-[1-[4-methyl]benzenesulfonyl)imidazol-4-yl]-2-methyl-3-oxopropyl]carbamic acid, tert-butyl ester