Methanol → 7-[5-(5-Chloro-2-fluorophenyl)-1,2,4-oxadiazol-3-yl]-3-(2-thienyl)-6,7-dihydro-5H-[1,2,4]triazolo[3,4-b][1,3]thiazine

Participants

Reaction Steps

To a solution of 2-[3-({[5-(5-chloro-2-fluorophenyl)-1,2,4-oxadiazol-3-yl]methyl}thio)-5-(2-thienyl)-4H-1,2,4-triazol-4-yl]ethyl methanesulfonate (43 mg) in DMF (2 ml) was added sodium hydride (10 mg) at −78° C. while stirring. The mixture was allowed to come to r.t. and stirred for another 3 h before addition of MeOH (1 ml) and concentration onto silica gel. Purification by chromatography on silica gel using DCM:EA:MeOH 70:30:2 as eluent provided 2.8 mg of the title compound. 1H NMR: 8.07 (dd, 1H), 7.56 (m, 1H), 7.51 (dd, 1H), 7.47 (dd, 1H), 7.17-7.23 (m, 2H), 4.86 (dd, 1H), 4.60 (m, 1H), 4.38 (m, 1H), 2.82 (m, 2H)

Provenance & Evidence