(3,4-Dimethoxyphenyl)acetic acid → N-(6-Chloro-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl)-2-(3,4-dimethoxyphenyl)acetamide

HRID 452253Notes

Reaction equation

HRID 452253 reaction equation
CC1(C)C[CH:10]([NH2:12])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7]C=2)[O:3]1.[CH3:14][O:15][C:16]1[CH:17]=[C:18]([CH2:24][C:25]([OH:27])=O)[CH:19]=[CH:20][C:21]=1[O:22][CH3:23].CCN=C=NCCCN(C)C.[ClH:39].[CH:40]1[CH:41]=[CH:42][C:43]2N(O)N=N[C:44]=2[CH:45]=1.C(N(CC)CC)C>ClCCl>[Cl:39][C:40]1[CH:45]=[C:44]2[C:43](=[CH:42][CH:41]=1)[O:3][C:4]1([CH2:5][CH2:6][CH2:7]1)[CH2:9][CH:10]2[NH:12][C:25](=[O:27])[CH2:24][C:18]1[CH:19]=[CH:20][C:21]([O:22][CH3:23])=[C:16]([O:15][CH3:14])[CH:17]=1

Participants

7

Reactant 5

HCID 7139(3,4-Dimethoxyphenyl)acetic acidHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 153387052,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-amine

Product 1

HCID 44132276N-(6-Chloro-3,4-dihydrospiro[chromene-2,1'-cyclobutan]-4-yl)-2-(3,4-dimethoxyphenyl)acetamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

The title compound was prepared from Intermediate 2 (200 mg, 0.763 mmol) and 3,4-dimethoxyphenylacetic acid (224 mg, 1.145 mmol) in presence of EDCI.HCl (219 mg, 1.145 mmol), HOBt (175 mg, 1.145 mmol) and triethylamine (425 μl, 3.053 mmol) in dichloromethane (10 ml) as described in Example 1 to give 217 mg of the product as a white solid; IR (KBr) 3232, 2938, 1634, 1478, 1241, 813 cm−1; 1H NMR (300 MHz, CDCl3) δ 1.62-1.70 (m, 2H), 1.87-1.90 (m, 2H), 1.99-2.15 (m, 2H), 2.18-2.37 (m, 2H), 3.60 (q, J=16.2 Hz, 2H), 3.85 (s, 6H), 5.23 (q, J=9.6 Hz, 1H), 5.48 (d, J=9.0 Hz, 1H), 6.68 (d, J=9.0 Hz, 1H), 6.77-6.84 (m, 3H), 6.96 (s, 1H), 7.04 (d, J=8.4 Hz, 1H); ESI-MS (m/z) 401.27 (100%).

Sources & evidence

ORD record
ord-a362e89873744c2ba75f0d3ac6d270da
Source dataset
uspto-grants-2013_07
Patent number
US08487121B2

Reaction notes

Loading…