4-(2-Chloro-6-methoxyphenyl)-9-hydroxy-6-(2-hydroxyethyl)pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione → 9-Hydroxy-6-(2-hydroxyethyl)-4-(2-methoxyphenyl)pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

Participants

Reaction Steps

Reaction of 4-(2-Chloro-6-methoxyphenyl)-9-hydroxy-6-(2-hydroxyethyl)pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione (VI; Ar-2-chloro-6-methoxyphenyl, R10═CH2CH,OH) (112) prepared as described in example 64 with hydrogen gas, using a Pd/C catalyst, according to the procedure for example 60 gave 9-Hydroxy-6-(2-hydroxyethyl)-4-(2-methoxyphenyl)pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione (VI; Ar=2-methoxyphenyl, R10═CH2CH2OH) (113) in a 77% yield as a yellow solid; mp 285–289° C. 1H NMR δ [(CD3)2SO] 10.91 (br s, 1H), 9.29 (br s, 1H), 8.37 (d, J=2.4 Hz, 1H), 7.70 (s, 1H), 7.55 (d, J=8.8 Hz, 1H), 7.42 (m, 1H), 7.33 (dd, J=8.8, 2.4 Hz, 1H), 7.12–7.02 (m, 3H), 4.84 (t, J=5.5 Hz, 1H), 4.73 (t, J=5.3 Hz, 2H), 3.76 (dt, J=5.5, 5.3 Hz, 2H), 3.68 (s, 3H). Found: C, 67.30; H, 4.47; N, 6.79. C23H18N2O5.1/2H2O requires C, 67.15; H, 4.65; N, 6.81.

Provenance & Evidence