155561-67-4 D-Tyrosine, N-(N-(N-((hexahydro-1H-azepin-1-yl)carbonyl)-L-leucyl)-1-methyl-D-tryptophyl)- N-((Hexahydro-1-azepinyl)carbonyl)-leu(1-methyl)-trp-trp N-((Hexahydro-1-azepinyl)carbonyl)-leucyl(1-methyl)-tryptophyl-tryptophan N-(N-(N-((Hexahydro-1H-azepin-1-yl)carbonyl)-L-leucyl)-1-methyl-D-tryptophyl)-D-tyrosine PD 151,242 PD 151242