884539-55-3

L-Proline,1-[(2S)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxo-8-nonenyl]-4-[[2-(5-methyl-3-isoxazolyl)thieno[3,2-d]pyrimidin-4-yl]oxy]-, monopotassiumsalt, (4R)-