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

HRID 1407880Notes

Reaction equation

HRID 1407880 reaction equation
[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH2:6][NH2:7].C1(CN)CCCCC1.[O:16]=[C:17]1[C:25]2([CH2:29][O:28][C:27]3[CH:30]=[C:31]4[C:35](=[CH:36][C:26]2=3)[CH2:34][CH2:33][O:32]4)[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[N:18]1[CH2:37][C:38]1[CH:46]=[CH:45][C:41]([C:42](O)=[O:43])=[CH:40][CH:39]=1.O=C1C2(COC3C=C4C(=CC2=3)CCO4)C2C(=CC=CC=2)N1CC1C=C(C=CC=1)C(O)=O>>[O:16]=[C:17]1[C:25]2([CH2:29][O:28][C:27]3[CH:30]=[C:31]4[C:35](=[CH:36][C:26]2=3)[CH2:34][CH2:33][O:32]4)[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[N:18]1[CH2:37][C:38]1[CH:39]=[CH:40][C:41]([C:42]([NH:7][CH2:6][C:2]2[S:1][CH:5]=[CH:4][CH:3]=2)=[O:43])=[CH:45][CH:46]=1

Participants

5

Reactant 4

HCID 34005(2-Thienylmethyl)amineHCID 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 593526094-[(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 593526984-[(2'-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b']difuran-3,3'-indol]-1'(2'H)-yl)methyl]-N-(thiophen-2-ylmethyl)benzamide

Procedure

Following the procedure as described in EXAMPLE 12 and making non-critical variations using 2-thiophenemethylamine to replace cyclohexanemethylamine, and 4-[(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, 4-[(2′-oxo-5,6-dihydrospiro[benzo[1,2-b:5,4-b′]difuran-3,3′-indol]-1′(2′H)-yl)methyl]-N-(thiophen-2-ylmethyl)benzamide was obtained (48%) as a colorless solid: mp 167-168° C.; 1H NMR (300 MHz, CDCl3) δ7.81-7.73 (m, 2H), 7.43-7.37 (m, 2H), 7.27-7.16 (m, 3H), 7.07-7.00 (m, 2H), 6.99-6.95 (m, 1H), 6.75-6.70 (m, 1H), 6.48-6.40 (m, 3H), 4.99 (ABq, 2H), 4.84 (ABq, 2H), 4.83-4.78 (m, 2H), 4.59-4.50 (m, 2H), 3.09-2.90 (m, 2H); 13C NMR (75 MHz, CDCl3) δ178.0, 166.5, 161.9, 161.3, 141.7, 140.6, 139.4, 133.7, 132.6, 128.7, 127.7, 127.5, 126.9, 126.2, 125.3, 124.0, 123.6, 120.0 (2C), 118.8, 109.1, 93.3, 80.6, 72.4, 57.7, 43.8, 38.8, 29.0; MS (ES+) m/z 509.2 (M+1).

Sources & evidence

ORD record
ord-4cb247b6db134839b897a9f8f60bb390
Source dataset
uspto-grants-2014_12
Patent number
US08916580B2

Reaction notes

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