3-Amino-6-chloro-2-picoline → 4-[6-(6-Chloro-2-methyl-pyridin-3-ylamino)-5-methyl-pyrimidin-4-yloxy]-piperidine-1-carboxylic Acid Isopropyl Ester

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-(6-chloro-5-methyl-pyrimidin-4-yloxy)-piperidine-1-carboxylic acid isopropyl ester (1.546 g, 4.93 mmol), palladium acetate (110 mg, 0.49 mmol), biphenyl-3-yl-di-tert-butyl-phosphane (18.5 mg, 0.062 mmol), sodium tert-butoxide (1.20 g, 12.5 mmol), and 6-chloro-2-methyl-pyridin-3-ylamine (709 mg, 4.97 mmol) in 15 mL dioxane was heated in microwave for 2 hour at 120° C. Solids were filtered off and mixture was purified to give Compound A90 as a tanned solid (640 mg, 31%). 1H NMR (CDCl3, 400 MHz) δ 1.11-1.12 (d, 6H), 1.52-1.62 (m, 2H), 1.81-1.89 (m, 2H), 1.98 (s, 3H), 2.23 (m, 3H), 3.21-3.30 (m, 2H), 3.59-3.70 (m, 3H), 5.14-5.17 (m, 1H), 6.83-6.91 (m, 1H), 7.14-7.16 (d, 1H), 7.55-7.57 (d, 1H), 7.87 (s, 1H). Exact mass calculated for C20H26ClN5O3 419.17, found 419.9 (MH+).

Provenance & Evidence