Kj. Hwang et Ts. Lee, Synthesis of 4,6-dichloro-3-[(1-N-arylaminocarbonyl)-hydrazono]-1,3-dihydro-indole-2-one as a potential NMDA receptor glycine site antagonist, ARCH PH RES, 23(2), 2000, pp. 112-115
A synthetic procedure for the preparation of indole-2,3-dione derivatives 6
as a potential NMDA receptor glycine site antagonist with improved pharmac
ological profile compared with 2-carboxyindole derivative 5, starting from
readily available 3,5-dichloroaniline (7), is described.