Sodium Carbonate → N1-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N1-[(3'-formyl-6-methyl-3-biphenylyl)methyl]-1,1-cyclopropanedicarboxamide

Participants

Reaction Conditions

Reaction Steps

A mixture of N1-[(3-bromo-4-methylphenyl)methyl]-N1-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-1,1-cyclopropanedicarboxamide (520 mg, 0.87 mmol), (3-formylphenyl)boronic acid (170 mg, 1.131 mmol), Na2CO3 (277 mg, 2.61 mmol) and PdCl2(dppf) (63.7 mg, 0.087 mmol) was diluted in a mixture of 1,4-dioxane (9 mL) and water (3 mL) in a 20 mL Biotage microwave reaction tube. The mixture was degassed by bubbling argon through it for 5 min and was then heated in a Biotage microwave at normal absorption for 10 min at 100° C. The crude mixture was filtered through a PL-Thiol MP SPE+ and was then washed with ethyl acetate and water. The organic layer was concentrated under vacuum to obtain a crude residue. It was then purified with a CombiFlash Companion eluting with 0 to 100% ethyl acetate in dichloromethane (product came out at 80% ethyl acetate). The product fractions were combined and concentrated under vacuum to give N1-{[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}-N1-[(3′-formyl-6-methyl-3-biphenylyl)methyl]-1,1-cyclopropanedicarboxamide (420 mg, 77%). LC-MS m/z 623 (M+H)+, 0.90 min (ret time).

Provenance & Evidence