5-(Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3-carbaldehyde → 5-[6-(4-Methanesulfonyl-piperazin-1-ylmethyl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidin-2-yl]-pyridine-3-carbaldehyde

Participants

Reaction Steps

2-Chloro-6-(4-methanesulfonyl-piperazin-1-ylmethyl)-4-morpholin-4-yl-thieno[3,2-d]pyrimidine, prepared via General Procedure B-3, was reacted with 5-formylpyridine-3-boronic acid pinacol ester in General Procedure A. Purification on silica and ether trituration gave 241. NMR (CDCl3): 2.67-2.71 (4H, m), 2.81 (3H, s), 3.29-3.33 (4H, m), 3.89 (2H, s), 3.89-3.93 (4H, m), 4.08-4.12 (4H, m), 7.38 (1H, s), 9.18 (2H, m), 9.37 (1H, s), 10.25 (1H, s). MS (ESI+): MH+503.17 (100%)

Provenance & Evidence