393545-05-6

L-Cysteine,S-[2-methyl-7-[4-oxo-4-[(1,4,5,6-tetrahydro-2-pyrimidinyl)amino]butyl]-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-N-(phenylsulfonyl)-, 1,1-dimethylethylester