Trifluoroacetic acid → HCID 86714523, compound

Participants

Reaction Steps

To a solution of (R,E)-tert-butyl (5-(2-((4-amino-3-(2-fluoro-4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)methyl)pyrrolidin-1-yl)-4-cyano-2-methyl-5-oxopent-3-en-2-yl)carbamate (90 mg, 0.14 mmol, 1 equiv) in 16 mL DCM was added 4 mL trifluoroacetic acid dropwise. The resulting solution was stirred for 3 h at room temperature. The solution was concentrated under reduced pressure. The residue was purified on Prep-HPLC. Conditions: (1#-Pre-HPLC-001 (SHIMADZU)): Column, SunFire Prep C18, 19*150 mm 5 um; mobile phase, water with 0.05% TFA and CH3CN (40% CH3CN up to 100% in 20 min); Detector, 254 nm to give the title compound as a pale light yellow solid.

Provenance & Evidence