2-Chlorobenzylamine → N-(2-chlorobenzyl)-2-[(2'-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-1'(2'H)-yl)methyl]benzamide

HRID 2385471Notes

Reaction equation

HRID 2385471 reaction equation
[Cl:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH2:4][NH2:5].C1(CN)CCCCC1.[O:18]=[C:19]1[C:27]2([CH2:31][O:30][C:29]3[CH:32]=[C:33]4[C:37](=[CH:38][C:28]2=3)[CH2:36][CH2:35][O:34]4)[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[N:20]1[CH2:39][C:40]1[CH:48]=[CH:47][CH:46]=[CH:45][C:41]=1[C:42](O)=[O:43].O=C1C2(COC3C=C4C(=CC2=3)CCO4)C2C(=CC=CC=2)N1CC1C=C(C=CC=1)C(O)=O>>[Cl:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH2:4][NH:5][C:42](=[O:43])[C:41]1[CH:45]=[CH:46][CH:47]=[CH:48][C:40]=1[CH2:39][N:20]1[C:21]2[C:26](=[CH:25][CH:24]=[CH:23][CH:22]=2)[C:27]2([CH2:31][O:30][C:29]3[CH:32]=[C:33]4[C:37](=[CH:38][C:28]2=3)[CH2:36][CH2:35][O:34]4)[C:19]1=[O:18]

Participants

5

Reactant 4

HCID 666482-ChlorobenzylamineHCID 76688CyclohexanemethylamineHCID 593522533-[(2'-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-1'(2'H)-yl)methyl]benzoic acidHCID 593523082-[(2'-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-1'(2'H)-yl)methyl]benzoic acid

Product 1

HCID 59352088N-(2-chlorobenzyl)-2-[(2'-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-1'(2'H)-yl)methyl]benzamide

Procedure

Following the procedure as described in EXAMPLE 12 and making non-critical variations using 2-chlorobenzylamine to replace cyclohexanemethylamine, and 2-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-1′(2′H)-yl)methyl]benzoic acid to replace 3-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-1′(2′H)-yl)methyl]benzoic acid, N-(2-chlorobenzyl)-2-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-1′(2′H)-yl)methyl]benzamide was obtained (88%) as a colorless solid: mp 148-150° C.; 1H NMR (300 MHz, DMSO-d6) δ9.12 (t, J=5.8 Hz, 1H), 7.57 (dd, J=7.2, 1.5 Hz, 1H), 7.51-7.24 (m, 6H), 7.23-7.11 (m, 3H), 7.00 (dd, J=7.2, 7.2 Hz, 1H), 6.86 (d, J=7.7 Hz, 1H), 6.52 (s, 1H), 6.40 (s, 1H), 5.15-4.95 (m, 2H), 4.86 (d, J=9.4 Hz, 1H), 4.71 (d, J=9.4 Hz, 1H), 4.57-4.41 (m, 2H), 3.01-2.88 (m, 2H); 13C NMR (75 MHz, DMSO-d6) δ177.8, 169.0, 161.6, 161.2, 142.8, 136.6, 135.9, 134.6, 132.6, 132.5, 130.8, 129.7, 129.4, 129.2, 129.1, 128.4, 127.7, 127.0, 124.2, 123.6, 120.9, 120.4, 119.6, 109.7, 92.9, 80.4, 72.6, 57.4, 41.4, 41.1, 28.8; MS (ES+) m/z 537.2 (M+1).

Sources & evidence

ORD record
ord-7055fe12bf9b4d28b569a6558df88266
Source dataset
uspto-grants-2012_09
Patent number
US08263606B2

Reaction notes

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