5-Methylisatin → HCID 54741618, compound

Participants

Reaction Steps

Intermediate 17 was prepared as a white powder following the procedure described for Intermediate 16 by replacing indoline-2,3-dione with 5-methylindoline-2,3-dione. 1H NMR (400 MHz, chloroform-d) δ ppm 11.23 (1 H, br. s.), 9.64 (1 H, br. s.), 7.83 (1 H, s), 7.01-7.56 (2 H, m), 4.58 (2 H, q, J=7.1 Hz), 2.43 (4 H, s), 1.51 (3 H, t, J=7.1 Hz). LC-MS (ESI) m/z 247.9 (M+H), RT=1.76 min (Method B)

Provenance & Evidence