Sodium Iodide → HCID 67324316, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 7-[3-(3-chloro-propoxy)-5-fluoro-benzenesulfonyl]-3,4,4a,9a-tetrahydro-1H-benzofuro[2,3-c]pyridine-2-carboxylic acid tert-butyl ester (100 mg, 0.2 mmol), (R)-2-methyl-pyrrolidine, benzenesulfonic acid salt (92.5 mg, 0.380 mmol), sodium iodide (28.5 mg, 0.190 mmol), potassium carbonate (78.8 mg, 0.570 mmol), N,N-diisopropylethylamine (99.3 uL, 0.570 mmol) in acetonitrile (8.04 mL, 154 mmol) was heated at 70° C. After 3 days the reaction was cooled to room temperature, diluted with 10 mL solvent (MeOH:CH2Cl2 1:1) and filtered through a pad of silica-gel. The filtrate was concentrated. Purification by preparative TLC (MeOH:CH2Cl2 1:9) followed by removal of N-Boc protecting group with 4N HCl using the general procedure described afforded the desired product. mp 208-212° C., MS m/z 475 [M+H]+. 1H-NMR (400 MHz, DMSOd6): δ 10.58 (br s, 1H), 9.52 (br s, 1H), 8.84 (br s, 1H), 7.58 (m, 2H), 7.49 (s, 1H), 7.43 (d, J=6.82 Hz, 1H), 7.34 (s, 1H), 7.22 (d, J=9.92 Hz, 1H), 4.95 (s, 1H), 4.19 (s, 2H), 4.03 (m, 1H), 3.58-3.31 (overlapping m & s, 4H), 3.04 (s, 2H), 2.94 (s, 2H), 2.16 (br s, 4H), 1.99 (s, 1H), 1.94 (br s, 2H), 1.40 (d, J=5.33 Hz, 3H), 1.17 (m, 2H).

Provenance & Evidence