Sodium Carbonate → HCID 66692989, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (S)-methyl 2-(tert-butoxy)-2-(7-chloro-5-methyl-2-(5,6,7,8-tetrahydronaphthalen-2-yl)pyrazolo[1,5-a]pyrimidin-6-yl)acetate (50 mg, 0.113 mmol), 2-(8-fluoro-5-methylchroman-6-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (36.4 mg, 0.124 mmol) and 2M Na2CO3 (0.113 mL, 0.226 mmol) in DMF (1.5 mL) was added tetrakis(triphenylphosphine)pallafium(0) (13.07 mg, 0.011 mmol) and the mixture was subjected to microwave heating at 120° C. for 1 h. The mixture was then filtered and purified by prep HPLC to afford atrope isomer 1 (major, first eluting): (2S)-methyl 2-(tert-butoxy)-2-(7-(8-fluoro-5-methylchroman-6-yl)-5-methyl-2-(5,6,7,8-tetrahydronaphthalen-2-yl)pyrazolo[1,5-a]pyrimidin-6-yl)acetate (27 mg, 0.047 mmol, 41.7% yield) as white solid. 1H NMR (500 MHz, CDCl3) δ: 7.56 (d, J=7.9 Hz, 1H), 7.52 (s, 1H), 7.09 (d, J=7.9 Hz, 1H), 6.92 (d, J=10.7 Hz, 1H), 6.84 (s, 1H), 5.03 (s, 1H), 4.41-4.32 (m, 2H), 3.66 (s, 3H), 2.88-2.78 (m, 6H), 2.77 (s, 3H), 2.26-2.17 (m, 2H), 1.86 (s, 3H), 1.85-1.79 (m, 4H), 1.19 (s, 9H).

Provenance & Evidence