(2R,4S)-2-{(1R)-2-(Benzylamino)-2-oxo-1-[(phenylacetyl)amino]ethyl}-N-(2-{[((2R,4S)-2-{(1R)-2-[(2,4-dichlorobenzyl)amino]-2-oxo-1-[(pyridin-2-ylacetyl)amino]ethyl}-5,5-dimethyl-1,3-thiazolidin-4-yl)carbonyl]amino}ethyl)-5,5-dimethyl-1,3-thiazolidine-4-carboxamide AIDS-029872 AIDS029872 Penicillin G, ET(NH)2 pyrid deriv.