Triethylamine → 1-{3-[4-(2-Chloro-6-methanesulfonylamino-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester

HRID 271777Notes

Reaction equation

HRID 271777 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]2[N:14]([CH2:27][CH2:28][CH2:29][N:30]3[CH2:35][CH2:34][N:33]([C:36]4[C:41]([Cl:42])=[CH:40][CH:39]=[CH:38][C:37]=4[NH2:43])[CH2:32][CH2:31]3)[N:15]=[C:16]([C:17]3[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=3)[C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:44][S:45](Cl)(=[O:47])=[O:46].C(N(CC)CC)C.C([O-])(O)=O.[Na+]>C(Cl)Cl.CCOC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]2[N:14]([CH2:27][CH2:28][CH2:29][N:30]3[CH2:35][CH2:34][N:33]([C:36]4[C:37]([NH:43][S:45]([CH3:44])(=[O:47])=[O:46])=[CH:38][CH:39]=[CH:40][C:41]=4[Cl:42])[CH2:32][CH2:31]3)[N:15]=[C:16]([C:17]3[CH:18]=[CH:19][C:20]([C:23]([F:25])([F:26])[F:24])=[CH:21][CH:22]=3)[C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 516892Sodium BicarbonateHCID 684635871-{3-[4-(2-Amino-6-chloro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester

Product 1

HCID 684622321-{3-[4-(2-Chloro-6-methanesulfonylamino-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
25 °C

Procedure

A solution of 1-{3-[4-(2-amino-6-chloro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester (257 mg, 0.42 mmol) in 4 mL of CH2Cl2 was treated with 32 L (0.42 mmol, 1.0 eq) of methanesulfonyl chloride and 116 L (0.83 mmol, 2 eq) of triethylamine and the reaction mixture stirred at 25° C. for 1 h. EtOAc (40 mL) and sat. NaHCO3 (20 mL) were added. The organic layer was separated and washed with H2O (20 mL), brine (20 mL), dried over Na2SO4, and concentrated to afford the crude 1-{3-[4-(2-chloro-6-methanesulfonylamino-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester. TLC (silica, 10% MeOH/CH2Cl2): Rf=0.3. MS (electrospray): exact mass calculated for C32H40ClF3N6O4S, 696.25; m/z found, 697.2 [M+H]+.

Workup

  1. customThe organic layer was separated
  2. washwashed with H2O (20 mL), brine (20 mL)
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-dea025062226426d945866f19d09c05d
Source dataset
uspto-grants-2008_11
Patent number
US07452890B2

Reaction notes

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