2-(4-(7-Amino-6-bromo-3-(quinolin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetic acid → 2-(4-(7-amino-6-bromo-3-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetic acid

Participants

Reaction Steps

2-(4-(7-amino-6-bromo-3-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetic acid was synthesized in a manner similar to the synthesis of 2-(4-(7-amino-6-bromo-3-(quinolin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetic acid, but with tert-butyl 2-(4-(7-amino-3-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetate substituted for tert-butyl 2-(4-(7-amino-3-(quinolin-3-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetate. The reaction mixture was reduced in vacuo and purified via reverse-phase preparatory HPLC to yield 2-(4-(7-amino-6-bromo-3-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl)piperidin-1-yl)acetic acid as off-yellow solid. (m+H=434.19, retention time=2.25 min)

Provenance & Evidence