Piperazine → 9-Hydroxy-4-phenyl-6-[3-(1-piperazinyl)propyl]pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

HRID 11095Notes

Reaction equation

Br[CH2:2][CH2:3][CH2:4][N:5]1[C:17]2[CH:16]=[C:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C:14]3[C:24](=[O:28])[NH:25][C:26](=[O:27])[C:13]=3[C:12]=2[C:11]2[CH:10]=[C:9]([OH:29])[CH:8]=[CH:7][C:6]1=2.[NH:30]1[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]1>>[OH:29][C:9]1[CH:8]=[CH:7][C:6]2[N:5]([CH2:4][CH2:3][CH2:2][N:30]3[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]3)[C:17]3[CH:16]=[C:15]([C:18]4[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=4)[C:14]4[C:24](=[O:28])[NH:25][C:26](=[O:27])[C:13]=4[C:12]=3[C:11]=2[CH:10]=1

Participants

Reactant 2

HCID 4837Piperazine

HCID 867602016-(3-Bromopropyl)-9-hydroxy-4-phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

Product 1

HCID 219804049-Hydroxy-4-phenyl-6-[3-(1-piperazinyl)propyl]pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dioneYield 55%

Procedure

Bromide (204) (70 mg, 0.16 mmol) prepared as described in example 173 was reacted with piperazine according to The procedure described in example 179 except that the reaction was performed at room temperature for 20 h, to give amine (215) (40 mg, 55%) as a yellow powder, mp 178–183° C. 1H NMR δ [(CD3)2SO] 11.0 (br s, 1H), 9.35 (br s, 1H), 8.40 (d, J=2.4 Hz, 1H), 7.78 (s, 1H), 7.62 (m, 2H), 7.56 (d, J=8.8 Hz, 1H), 7.45 (m, 3H), 7.14 (dd, J=8.8, 2.4 Hz, 1H), 4.49 (t, J=6.3 Hz, 2H), 2.52 (m, 4H), 2.12 (m, 6H), 1.91 (m, 2H). Found: C, 69.31; H, 5.97; N, 11.49. C27H26N4O3.4/5H2O requires: C, 69.16; H, 5.93; N, 11.94.

Sources & evidence

ORD record: ord-2a3230ac66084754a1ba89fe21f7b805
Source dataset: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07094798B1

Reaction notes

Loading…