1,2-Dichloroethane → n-[4-(6,6-Dimethyl-4-oxo-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridin-2-yl)-3,4-dihydro-2h-1,4-benzoxazin-6-yl]-1-methyl-1h-imidazole-5-carboxamide

HRID 885968Notes

Reaction equation

HRID 885968 reaction equation
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]2[O:10][CH2:9][CH2:8][N:7]([C:11]3[S:12][C:13]4[C:14](=[O:22])[NH:15][C:16]([CH3:21])([CH3:20])[CH2:17][C:18]=4[N:19]=3)[C:6]=2[CH:23]=1.[CH3:24][N:25]1[C:29]([C:30](O)=[O:31])=[CH:28][N:27]=[CH:26]1.CCN(C(C)C)C(C)C.C(Cl)CCl.C1C=CC2N(O)N=NC=2C=1>C(Cl)Cl>[CH3:20][C:16]1([CH3:21])[NH:15][C:14](=[O:22])[C:13]2[S:12][C:11]([N:7]3[C:6]4[CH:23]=[C:2]([NH:1][C:30]([C:29]5[N:25]([CH3:24])[CH:26]=[N:27][CH:28]=5)=[O:31])[CH:3]=[CH:4][C:5]=4[O:10][CH2:9][CH2:8]3)=[N:19][C:18]=2[CH2:17]1

Participants

7

Reactant 5

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27735071-methyl-1H-imidazole-5-carboxylic acidHCID 58441690HCID 58441690, compound

Product 1

HCID 67187232n-[4-(6,6-Dimethyl-4-oxo-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridin-2-yl)-3,4-dihydro-2h-1,4-benzoxazin-6-yl]-1-methyl-1h-imidazole-5-carboxamideYield 29%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of Example 42 (0.025 g, 0.08 mmol) in DCM (1 mL) were added 1-methylimidazol-5-ylcarboxylic acid (0.013 g, 0.10 mmol), DIPEA (0.02 mL, 0.10 mmol), EDC (0.030 g, 0.16 mmol) and HOBT (0.05 g, 0.04 mmol). The reaction mixture was stirred at r.t. for 18 h, then concentrated in vacuo. Purification by preparative HPLC (Method 6) gave the title compound (0.01 g, 29%) as a yellow oil. δH (CDCl3) 9.25 (1H, s), 8.46-8.43 (1H, m), 7.33 (1H, dd, J 8.9 and 2.4 Hz), 7.07 (1H, d, J 0.9 Hz), 7.02 (1H, d, J 0.8 Hz), 6.94 (1H, d, J 8.9 Hz), 5.56 (1H, br. s), 4.36-4.29 (2H, m), 4.16-4.09 (2H, m), 4.11 (3H, s), 2.90 (2H, s), 1.40 (6H, s). LCMS (ES+) 439.4 (M+H)+, RT 2.69 minutes (Method 1).

Workup

  1. concentrationconcentrated in vacuo
  2. customPurification by preparative HPLC (Method 6)

Sources & evidence

ORD record
ord-872b64c81ce3465588ca83f5897b9224
Source dataset
uspto-grants-2012_08
Patent number
US08242116B2

Reaction notes

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