Furfurylamine → N-(furan-2-ylmethyl)-5-(isoquinolin-6-yl)-1,3,4-thiadiazol-2-amine

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Reaction Conditions

Reaction Steps

A stirred mixture of 6-(5-(methylsulfonyl)-1,3,4-thiadiazol-2-yl)isoquinoline and 6-(5-(methylsulfinyl)-1,3,4-thiadiazol-2-yl)isoquinoline (44 mg, 0.16 mmol) and furan-2-ylmethanamine (78 mg, 0.8 mmol) (commercially available from Acros Organics (Order Number 11980)) was heated at 80-100° C. for 3 hours. The resulting mixture was cooled to room temperature, diluted with EtOAc and washed with 2M aqueous Na2CO3 solution and water. The organic layer was dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluting with gradients of EtOAc in hexanes) to provide N-(furan-2-ylmethyl)-5-(isoquinolin-6-yl)-1,3,4-thiadiazol-2-amine as an amphorous solid (32 mg, 65%). LCMS (M+H) 309.3 calc for C16H13N4OS 309.1. 1H NMR (300 MHz, DMSO-d6): δ ppm 9.34 (s, 1H), 8.54 (m, 2H), 8.29 (s, 1H), 8.17 (m, 2H), 7.92 (d, J=5.8 Hz, 1H), 7.64 (s, 1H), 6.43 (m, 2H), 4.58 (d, J=5.2 Hz, 2H).

Provenance & Evidence