AIDS-005380 AIDS005380 Penicillin Et(NH)2 dimer [2R-[2.alpha.(R*),4.-beta.-]]-N,N'-[1,2-Ethanediyl]bis[2-[2-hydroxy-1]-[(phenylacetyl)amino]ethyl]-5,5-dimethyl-4-thiazolidinecarboxamide]