Acryloyl chloride → N-(5-{[5-Chloro-4-(1-methylindol-3-yl)pyrimidin-2-yl]amino}-2-{3-dimethylaminoazetidin-1-yl}-4-methoxyphenyl)prop-2-enamide

Participants

Reaction Steps

A solution of acryloyl chloride (0.049 mL, 0.60 mmol) in CH2Cl2 (0.5 mL) was added dropwise to a mixture of N-[5-chloro-4-(1-methylindol-3-yl)pyrimidin-2-yl]-4-(3-dimethylaminoazetidin-1-yl)-6-methoxybenzene-1,3-diamine (Intermediate 112, 260 mg, 0.54 mmol) in CH2Cl2 (9 mL). This mixture was stirred for 1 h and then loaded onto a SCX column. The column was washed with CH3OH and the desired product was then eluted from the column using 2M methanolic ammonia. Appropriate fractions were concentrated in vacuo to give a brown gum. Purification by FCC, eluting with 1-10% CH3OH in CH2Cl2 (containing 1% concentrated aqueous ammonia) gave the title compound (214 mg, 74%) as a yellow solid after trituration with CH3OH (0.5 mL) using an ultrasound bath for 2 mins; 1H NMR: 2.10 (6H, s), 3.03-3.14 (1H, m), 3.59 (2H, t), 3.77 (3H, s), 3.90 (3H, s), 3.97 (2H, t), 5.66 (1H, dd), 6.16 (1H, dd), 6.23 (1H, s), 6.46 (1H, dd), 7.12 (1H, t), 7.23 (1H, t), 7.44-7.54 (2H, m), 8.20-8.38 (3H, m), 8.51 (1H, s), 9.21 (1H, s); m/z: ES+ MH+ 532.

Provenance & Evidence