Methanesulfonyl chloride → HCID 11511851, compound

HRID 386193Notes

Reaction equation

HRID 386193 reaction equation
[C:1]1([C:7]2[CH:16]=[CH:15][C:14]3[C:9](=[CH:10][C:11]([C:17]4[N:18]=[C:19]([CH2:27][CH:28]5[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]5)[N:20]5[CH:25]=[CH:24][N:23]=[C:22]([NH2:26])[C:21]=45)=[CH:12][CH:13]=3)[N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CCN(C(C)C)C(C)C.[CH3:43][S:44](Cl)(=[O:46])=[O:45]>C(Cl)Cl>[CH3:43][S:44]([N:31]1[CH2:32][CH2:33][CH:28]([CH2:27][C:19]2[N:20]3[CH:25]=[CH:24][N:23]=[C:22]([NH2:26])[C:21]3=[C:17]([C:11]3[CH:10]=[C:9]4[C:14]([CH:15]=[CH:16][C:7]([C:1]5[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=5)=[N:8]4)=[CH:13][CH:12]=3)[N:18]=2)[CH2:29][CH2:30]1)(=[O:46])=[O:45]

Participants

5

Reactant 3

HCID 31297Methanesulfonyl chloride3×HCID 81531DiisopropylethylamineHCID 11517695HCID 11517695, compound

Product 1

HCID 11511851HCID 11511851, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

1-(2-phenylquinolin-7-yl)-3-(piperidin-4-ylmethyl)-imidazo-[1,5-a]-pyrazin-8-amine (110.00 mg, 0.25 mmol) in a dried 15 mL round-bottom flask was dissolved in 2.00 mL of CH2Cl2 and charged with PS-DIEA (150.00 mg, 0.46 mmol). Methanesulfonyl chloride (10 μL, 0.47 equiv) was added in one portion. After 10 min., another 5 μL of methanesulfonyl chloride (0.24 equiv) was added. After another 10 min., another 2.1 μL of methanesulfonyl chloride (0.1 equiv) was added. The reaction was filtered through a fritted funnel, and the resins were rinsed multiple times with CH2Cl2. The crude product was purified by 5 g Jones silica gel (wetted with 100% CH2Cl2, dry loaded with silica, and eluted with 2% (7N NH3) in MeOH/CH2Cl2→5% (7N NH3) in MeOH/CH2Cl2) and afforded the desired product; 1H NMR (400 MHz, CHLOROFORM-d) δ 8.41 (1 H, d, J=0.85), 8.29 (1 H, d, J=8.86), 8.20 (2 H, dd, J=1.51, J=1.12), 7.97 (2 H, m), 7.86 (1 H, dd, J=1.72, J=1.72), 7.53 (4 H, m), 7.24 (1 H, d, J=5.26), 7.08 (1 H, d, J=6.75), 3.85 (2 H, d, J=11.88), 2.98 (2 H, d, J=7.08), 2.68 (2 H, t), 2.20 (1 H, m), 1.94 (2 H, d, J=10.92), 1.50 (2 H, m); MS (ES+): m/z 513.02/514.03 (80/70) [MH+]; HPLC: tR=2.17 min (OpenLynx, polar—5 min).

Workup

  1. waitAfter another 10 min.
  2. filtrationThe reaction was filtered through a fritted funnel
  3. washthe resins were rinsed multiple times with CH2Cl2
  4. customThe crude product was purified by 5 g Jones silica gel (wetted with 100% CH2Cl2, dry loaded with silica, and eluted with 2% (7N NH3) in MeOH/CH2Cl2→5% (7N NH3) in MeOH/CH2Cl2)

Sources & evidence

ORD record
ord-087e4fb123c14d89944fad52ae7a7438
Source dataset
uspto-grants-2013_02
Patent number
US08367826B2

Reaction notes

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