4-Methoxybenzenesulfonyl chloride → HCID 178492815, compound

HRID 1888280Notes

Reaction equation

HRID 1888280 reaction equation
Cl.[C:2]1([C:8]2[CH:9]=[C:10]3[C:14](=[C:15]([C:17]([NH2:19])=[O:18])[CH:16]=2)[NH:13][N:12]=[C:11]3[CH:20]2[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(C(C)C)CC)(C)C.[CH3:35][O:36][C:37]1[CH:42]=[CH:41][C:40]([S:43](Cl)(=[O:45])=[O:44])=[CH:39][CH:38]=1>ClCCl.CN(C1C=CN=CC=1)C>[CH3:35][O:36][C:37]1[CH:38]=[CH:39][C:40]([S:43]([N:23]2[CH2:24][CH2:25][CH:20]([C:11]3[C:10]4[C:14](=[C:15]([C:17]([NH2:19])=[O:18])[CH:16]=[C:8]([C:2]5[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=5)[CH:9]=4)[NH:13][N:12]=3)[CH2:21][CH2:22]2)(=[O:45])=[O:44])=[CH:41][CH:42]=1

Participants

6

Reactant 3

HCID 74014-Methoxybenzenesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 1784795395-phenyl-3-(4-piperidinyl)-1H-indazole-7-carboxamide hydrochloride

Product 1

HCID 178492815HCID 178492815, compoundYield 55%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

The crude 5-phenyl-3-(4-piperidinyl)-1H-indazole-7-carboxamide hydrochloride (21.1 mg, 0.066 mmol) (Example 2) was suspended in dichloromethane (8 mL) and treated with diisopropylethyl amine (46 uL, 0.264 mmols), DMAP (8 mg, 0.065 mmol), and 4-(methyloxy)benzenesulfonyl chloride (21 mg, 0.1 mmols) at 0° C. After 12 hrs, the mixture was concentrated to dryness in vacuo at ambient temperature, treated with water (10 mL), and extracted with ethyl acetate (3×25 mL). The organic phase was washed with water, dried over MgSO4, filtered, and concentrated to give a light brown solid. This was purified via preparative HPLC eluting with 10% B to 80% B, where A=H2O (0.1% trifluoroacetic acid) and B=CH3CN (0.1% trifluoroacetic acid) to give the title compound (16 mg, 55%).

Workup

  1. concentrationthe mixture was concentrated to dryness in vacuo at ambient temperature
  2. additiontreated with water (10 mL)
  3. extractionextracted with ethyl acetate (3×25 mL)
  4. washThe organic phase was washed with water
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto give a light brown solid
  9. customThis was purified via preparative HPLC
  10. washeluting with 10% B to 80% B, where A=H2O (0.1% trifluoroacetic acid) and B=CH3CN (0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-dff6962c47734bf9b8df4513b5065853
Source dataset
uspto-grants-2013_08
Patent number
US08501780B2

Reaction notes

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