Diisopropylethylamine → 2-amino-N-[7-methoxy-8-(3-morpholin-4-ylpropoxy)-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl]-1,3-thiazole-5-carboxamide

HRID 1259503Notes

Reaction equation

HRID 1259503 reaction equation
[CH3:1][O:2][C:3]1[C:12]2[N:11]=[C:10]([NH2:13])[N:9]3[CH2:14][CH2:15][N:16]=[C:8]3[C:7]=2[CH:6]=[CH:5][C:4]=1[O:17][CH2:18][CH2:19][CH2:20][N:21]1[CH2:26][CH2:25][O:24][CH2:23][CH2:22]1.[NH2:27][C:28]1[S:29][C:30]([C:33](O)=[O:34])=[CH:31][N:32]=1.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.C(N(C(C)C)CC)(C)C>CN(C=O)C>[NH2:27][C:28]1[S:29][C:30]([C:33]([NH:13][C:10]2[N:9]3[CH2:14][CH2:15][N:16]=[C:8]3[C:7]3[CH:6]=[CH:5][C:4]([O:17][CH2:18][CH2:19][CH2:20][N:21]4[CH2:22][CH2:23][O:24][CH2:25][CH2:26]4)=[C:3]([O:2][CH3:1])[C:12]=3[N:11]=2)=[O:34])=[CH:31][N:32]=1

Participants

6

Procedure

7-Methoxy-8-(3-morpholin-4-ylpropoxy)-2,3-dihydroimidazo[1,2-c]quinazolin-5-amine (250 mg, 0.70 mol) was dissolved in DMF (4 mL), and 2-amino-1,3-thiazole-5-carboxylic acid (110 mg, 0.76 mmol) was added. PYBOP (543 mg, 1.04 mmol) and diisopropylethylamine (0.61 mL, 3.50 mmol) were subsequently added, and the mixture was stirred at room temperature overnight. The desired product was isolated via HPLC to give the title compound (80.0 mg, 24%): HPLC MS RT=1.03 min, MH+=486.3; 1H NMR (MeOH-d4+2 drops TFA-d) δ: 7.90 (1H, d), 7.79 (1H, d), 7.50-7.60 (2H, m), 3.70 (2H, m), 3.30 (2H, d), 3.20 (2H, q), 2.10 (2H, s), 1.35 (10H, m).

Sources & evidence

ORD record
ord-1e28d87525af4d5fb646bce339aed5f1
Source dataset
uspto-grants-2013_06
Patent number
US08466283B2

Reaction notes

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