7-amino-1-methyl-4,5-dihydro-3,1-benzoxazepin-2(1H)-one → 3-fluoro-2-[5-chloro-2-(5-methyl-6-oxo-5,6,8,9-tetrahydro-7-oxa-5-aza-benzocyclohepten-2-ylamino)-pyrimidin-4-ylamino]-N-methyl-benzamide

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Reaction Conditions

Reaction Steps

A mixture of 2-amino-5-methyl-8,9-dihydro-5H-7-oxa-5-aza-benzocyclohepten-6-one and 3-fluoro-2-(2,5-dichloro-pyrimidin-4-ylamino)-N-methyl-benzamide in IPA (3 mL) was treated with 4 drops of 4N HCl/dioxane and microwave-heated at 120° C. for 90 minutes. The mixture was concentrated and purified by semipreparative HPLC to afford 3-fluoro-2-[5-chloro-2-(5-methyl-6-oxo-5,6,8,9-tetrahydro-7-oxa-5-aza-benzocyclohepten-2-ylamino)-pyrimidin-4-ylamino]-N-methyl-benzamide: 1H NMR (300 MHz, CDCl3) δ 8.87 (s, 1H), 8.08 (s, 1H), 7.30 (m, 5H), 6.91 (d, 2H), 6.10 (bq, 1H), 4.41 (t, 2H), 3.35 (s, 3H), 2.92 (d, 3H), 2.81 (t, 2H); MS (m/e) 471 (M+1).

Provenance & Evidence