Chloroindolo[2.1 -b]quinazoline-6.12-dione

Chloroindolo[2.1 -b]quinazoline-6.12-dione

Using the procedure in Example 12, and substituting NMP for DMF and isatin for 5-fluoroisatin gave 53 mg (7%) of the title compound: mp 320°C (dec); 

lH NMR(DMSO-d₆) δ 7.46-7.54 (m, IH), 7.86-7.92 (m, 3H), 8.26-8.28 (m, IH), 8.45-8.50 (m, 2H); 

MS (M+H)⁺ 282.

http://www.google.com/patents/WO1995013807A1?cl=en