4-[[[3-[3-[[(1,1-Dimethylethyl)amino]carbonyl]decahydro-2-isoquinolinyl]-2(S)-hydroxypropyl]amino]carbonyl]-5,5-dimethyl-.alpha.-[(phenylacetyl)amino]-2-thiazolidineacetic acid, methyl ester, [2R-[2. AIDS-006814 AIDS006814 Penicillin, 2Isoquin-OHPrNH2 analog