Diisopropylethylamine → HCID 178493823, compound

HRID 536245Notes

Reaction equation

HRID 536245 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][C:19]1[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:27])=[O:26])=[CH:21][CH:20]=1.[NH2:29][C:30]1[N:35]=[CH:34][C:33]([C:36](O)=[O:37])=[CH:32][N:31]=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>[NH2:29][C:30]1[N:35]=[CH:34][C:33]([C:36]([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][C:19]4[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:27])=[O:26])=[CH:21][CH:20]=4)=[C:3]([O:2][CH3:1])[C:12]=3[N:11]=2)=[O:37])=[CH:32][N:31]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 70203672-aminopyrimidine-5-carboxylic AcidHCID 178493824HCID 178493824, compound

Product 1

HCID 178493823HCID 178493823, compoundYield 12.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

7-Methoxy-8-{[4-(methylsulfonyl)benzyl]oxy}-2,3-dihydroimidazo[1,2-c]quinazolin-5-amine (Step 1, 76 mg, 0.19 mmol) was dissolved in DMF (5 mL), and 2-aminopyrimidine-5-carboxylic acid (40 mg, 0.29 mmol) was added. PyBOP (152 mg, 0.29 mmol) and diisopropylethylamine (0.15 mL, 0.85 mmol) were subsequently added. The mixture was stirred at it overnight, during which a tan solid precipitated. The DMF was removed under reduced pressure and the residue purified via silica gel chromatography (0-3% MeOH/CH2Cl2+0.1% Et3N). The solvent was evaporated under reduced pressure, the residue triturated in water (5 mL), collected by vacuum filtration, then washed with acetone. High vacuum drying gave the title compound (12 mg, 12%): HPLC MS RT=2.06 min, MH+=522.1; 1H NMR (DMSO-d6+2 drops TFA-d) δ: 3.22 (3H, s), 4.00 (3H, s), 4.19-4.25 (2H, m), 4.48-4.55 (2H, m), 5.53 (2H, s), 7.53 (1H, d), 7.77 (2H, d), 7.97-8.03 (3H, m), 9.06 (2H, s).

Workup

  1. customprecipitated
  2. customThe DMF was removed under reduced pressure
  3. customthe residue purified via silica gel chromatography (0-3% MeOH/CH2Cl2+0.1% Et3N)
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue triturated in water (5 mL)
  6. filtrationcollected by vacuum filtration
  7. washwashed with acetone
  8. customHigh vacuum drying

Sources & evidence

ORD record
ord-4511cf258c8f412eb912933c7e37f00a
Source dataset
uspto-grants-2014_10
Patent number
US08859572B2

Reaction notes

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