2-Thiophenesulfonyl chloride → HCID 86619274, compound

Participants

Reaction Steps

To 2-chloro-4-morpholin-4-yl-6-piperazin-1-ylmethyl-thieno[2,3-d]pyrimidine (150 mg) in anhydrous DCM (4 ml) and triethylamine (90 ul) was added 2-thiophenesulfonyl chloride (101 ul) at 0° C. The reaction mixture was allowed to warm up to room temperature over 4 hours. Aqueous work-up and purification on silica gave 2-chloro-4-morpholin-4-yl-6-[4-(thiophene-2-sulfonyl)-piperazin-1-ylmethyl]-thieno[2,3-d]pyrimidine (208 mg), which was reacted with 2-aminopyrimidine-5-boronic acid in General Procedure A. Purification on silica yielded 412. NMR (DMSO): 2.53-2.58 (4H, m), 3.20-3.23 (4H, m), 3.74-3.77 (4H, m), 3.80 (2H, s), 3.88-3.91 (4H, m), 7.08 (2H, br), 7.30-7.32 (1H, m), 7.52 (1H, s), 7.65-7.67 (1H, m), 8.08-8.10 (1H, m), 9.08 (2H, s) MS (ESI+): MH+559.15 (15%)

Provenance & Evidence