(4-(1-(1-Ethoxyethyl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate

It features a pyrazolyl substituent for enhanced stability and a pivalate ester group improving lipophilicity and membrane permeability. A pyrrolopyrimidine derivative used as an intermediate in the synthesis of kinase inhibitors.

API Name Baricitinib
CAS No 1146629-76-6
Molecular Formula C19H25N5O3
Molecular Weight 371.4 g/mol
Synonyms [4-[1-(1-ethoxyethyl)pyrazol-4-yl]pyrrolo[2,3-d]pyrimidin-7-yl]methyl 2,2-dimethylpropanoate

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