4-[[[3-[3-[[(1,1-Dimethylethyl)amino]carbonyl]decahydro-2-isoquinolinyl]-2-hydroxypropyl]amino]carbonyl]-5,5-dimethyl-.alpha.-[(phenylacetyl)amino]-N-cyclohexylmethyl-2-thiazolidineacetamide, [2R-[2. AIDS-006817 AIDS006817 Penicillin, 2Isoquin-OHPrNH2 analog