Pyridinium chloride → HCID 21980647, compound

HRID 11137Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:20]2[C:21](=[O:25])[NH:22][C:23](=[O:24])[C:19]=2[C:18]2[C:17]3[CH:16]=[C:15]([O:26]C)[C:14]([CH2:28][CH2:29][CH2:30][CH2:31]I)=[CH:13][C:12]=3[NH:11][C:10]=2[CH:9]=1.Cl.[N:34]1[CH:39]=[CH:38][CH:37]=[CH:36]C=1>>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:20]2[C:21](=[O:25])[NH:22][C:23](=[O:24])[C:19]=2[C:18]2[C:17]3[CH:16]=[C:15]([OH:26])[C:14]([CH2:28][CH2:29][CH2:30][CH2:31][N:34]4[CH2:36][CH2:37][CH2:38][CH2:39]4)=[CH:13][C:12]=3[NH:11][C:10]=2[CH:9]=1

Participants

Reactant 2

HCID 10176127Pyridinium chloride

HCID 219809064-(2-Chlorophenyl)-8-(4-iodobutyl)-9-methoxypyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

Product 1

HCID 21980647HCID 21980647, compoundYield 72%

Procedure

Demethylation of (173) prepared as described in example 312 with pyridine hydrochloride using the procedure described in example 81 gave (177) (72%). 1H NMR δ [(CD3)2SO] 11.70 (s, 1H), 10.98 (br s, 1H), 9.30 (br, 1H), 8.31 (s, 1H), 7.57 (dd, J=8.0, 2.2 Hz, 1H), 7.49 (s, 1H), 7.49–7.40 (m, 3H), 7.32 (s, 1H), 2.73 (t, J=7.5 Hz, 2H), 2.44–2.36 (m, 6H), 1.69–1.61 (m, 6H), 1.51 (m, 2H). The hydrochloride salt had a mp of 173–178° C. (dec). Found: C, 62.27; H, 5.22; N, 7.74. C28H26ClN3O3.HCl.H2O requires C, 62.00; H, 5.39; N, 7.75.

Sources & evidence

ORD record: ord-b586723b61704dd28d0ecfa2f449896d
Source dataset: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07094798B1

Reaction notes

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