Pyridine → HCID 76770966, compound

Participants

Reaction Conditions

Reaction Steps

50 μl Pyridine was added to 8.8 mg 2-(2-(3,5-dimethylisoxazol-4-yl)-1-(4-hydroxyphenyl)-1H-indol-3-yl)-2-oxoacetamide and 32.6 mg hydroxylamine hydrochloride in 1.5 ml EtOH in a microwave vial. The vial was sealed and flushed with nitrogen. The mixture was heated to 150° C. for 7.5 min. and then to 150° C. for 5 min. in a Biotage Initiator microwave oven. The mixture was concentrated in vacuo and purified by preparative HPLC (formic acid buffer/acetonitrile). 2-(2-(3,5-dimethylisoxazol-4-yl)-1-(4-hydroxyphenyl)-1H-indol-3-yl)-2(hydroxyimino)acetamide (E35) was obtained as a mixture of syn and anti oxime isomers. ES/MS m/z: 391.4 (M+H), 389.5 (M−H); 1H NMR (DMSO-d6, 500 MHz): 7.37 (m, 1H), 7.20-7.03 (m, 5H), 6.84 (m, 2H), 2.15 (s, 3H) and 1.77 (s, 3H).

Provenance & Evidence