Diisopropylethylamine → Benzothiazol-2-yl-{4-[4-(4-methanesulfonyl-phenoxy)-pyrazolo[3,4-d]pyrimidin-1-yl]-piperidin-1-yl}-methanone

HRID 1931759Notes

Reaction equation

HRID 1931759 reaction equation
FC(F)(F)C(O)=O.[CH3:8][S:9]([C:12]1[CH:33]=[CH:32][C:15]([O:16][C:17]2[N:22]=[CH:21][N:20]=[C:19]3[N:23]([CH:26]4[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]4)[N:24]=[CH:25][C:18]=23)=[CH:14][CH:13]=1)(=[O:11])=[O:10].[S:34]1[C:38]2[CH:39]=[CH:40][CH:41]=[CH:42][C:37]=2[N:36]=[C:35]1[C:43](Cl)=[O:44].C(N(C(C)C)CC)(C)C>ClCCl>[S:34]1[C:38]2[CH:39]=[CH:40][CH:41]=[CH:42][C:37]=2[N:36]=[C:35]1[C:43]([N:29]1[CH2:28][CH2:27][CH:26]([N:23]2[C:19]3=[N:20][CH:21]=[N:22][C:17]([O:16][C:15]4[CH:14]=[CH:13][C:12]([S:9]([CH3:8])(=[O:11])=[O:10])=[CH:33][CH:32]=4)=[C:18]3[CH:25]=[N:24]2)[CH2:31][CH2:30]1)=[O:44]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 2776254Benzothiazole-2-carbonyl chlorideHCID 669153264-(4-methanesulfonyl-phenoxy)-1-piperidin-4-yl-1H-pyrazolo[3,4-d]pyrimidine trifluoroacetate salt2×

Product 1

HCID 57964911Benzothiazol-2-yl-{4-[4-(4-methanesulfonyl-phenoxy)-pyrazolo[3,4-d]pyrimidin-1-yl]-piperidin-1-yl}-methanoneYield 62%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A mixture of 4-(4-methanesulfonyl-phenoxy)-1-piperidin-4-yl-1H-pyrazolo[3,4-d]pyrimidine trifluoroacetate salt (Intermediate 27; 63 mg, 0.13 mmol), benzothiazole-2-carbonyl chloride (available from Alfa Aesar, Ward Hill, Mass., USA; 33 mg, 0.17 mmol), and diisopropylethylamine (0.14 mL, 0.8 mmol) in dry dichloromethane (4 mL) was stirred at room temperature over the weekend. The solution was diluted with dichloromethane (6 mL) and washed with 1 M aqueous hydrochloric acid (5 mL), water (5 mL), saturated aqueous sodium bicarbonate (5 mL) and brine (5 mL). The organic layer was evaporated and the crude product was purified by HPLC to give benzothiazol-2-yl-{4-[4-(4-methanesulfonyl-phenoxy)-pyrazolo[3,4-d]pyrimidin-1-yl]-piperidin-1-yl}-methanone (43 mg, 62%) as a light yellow solid.

Workup

  1. washwashed with 1 M aqueous hydrochloric acid (5 mL), water (5 mL), saturated aqueous sodium bicarbonate (5 mL) and brine (5 mL)
  2. customThe organic layer was evaporated
  3. customthe crude product was purified by HPLC

Sources & evidence

ORD record
ord-a58be4217de44c15b1b6d19ed8298491
Source dataset
uspto-grants-2012_05
Patent number
US08188098B2

Reaction notes

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