Dimethylformamide → HCID 57942120, compound

HRID 419160Notes

Reaction equation

HRID 419160 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:11][S:12]([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[C:17]([C:22]([F:25])([F:24])[F:23])[CH:16]=2)(=[O:14])=[O:13])[C:5]([C:8]([OH:10])=O)=[N:6][CH:7]=1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=[CH:39][CH:40]=[CH:41][C:36]=2[N:35]=N1.CN(C=[O:57])C.CCN(CC)CC>CCOC(C)=O>[Cl:21][C:18]1[CH:19]=[CH:20][C:15]([S:12]([NH:11][C:4]2[C:5]([C:8]([N:35]3[CH2:36][CH2:41][CH:40]([OH:57])[CH2:39]3)=[O:10])=[N:6][CH:7]=[C:2]([Cl:1])[CH:3]=2)(=[O:14])=[O:13])=[CH:16][C:17]=1[C:22]([F:23])([F:24])[F:25]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 579420775-Chloro-3-(4-chloro-3-trifluoromethyl benzenesulfonylamino)-pyridine-2-carboxylic acid

Product 1

HCID 57942120HCID 57942120, compoundYield 43%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

To a vial containing 5-chloro-3-(4-chloro-3-trifluoromethyl benzenesulfonylamino)-pyridine-2-carboxylic acid (20 mg, 0.05 mmol) were added 3-(±)-pyrrolidinol hydrochloride (13 mg, 0.11 mmol), BOP (25 mg, 0.06 mmol), DMF (0.3 mL) and NEt3 (40 μL, 0.29 mmol). The solution was maintained at room temperature for 24 h, then diluted with EtOAc (30 mL), washed with saturated aqueous NaCl (3×5 mL), and dried over MgSO4. The volatiles were removed in vacuo. The resulting residue was purified by preparative HPLC (20→95% gradient of MeCN—H2O with 0.1% TFA) and the pure fractions lyophilized to afford the title compound (10 mg, 43% yield): HPLC retention time=2.49 minutes. MS (ES) [M+H]+ expected 484.0, found 484.0. 1H NMR (400 MHz, CDCl3) δ 11.38 (s, 1H), 8.21-8.24 (m, 1H), 8.11-8.13 (m, 1H), 8.02-8.04 (m, 1H), 7.91-7.93 (m, 1H), 7.60-7.62 (m, 1H), 4.50-4.53 (m, 1H), 3.82-4.01 (m, 2H), 3.65-3.76 (m, 3H), 1.95-2.04 (m, 2H).

Workup

  1. washwashed with saturated aqueous NaCl (3×5 mL)
  2. dry with materialdried over MgSO4
  3. customThe volatiles were removed in vacuo
  4. customThe resulting residue was purified by preparative HPLC (20→95% gradient of MeCN—H2O with 0.1% TFA)

Sources & evidence

ORD record
ord-966ff3602e4a44bdabefb46f9a17732d
Source dataset
uspto-grants-2012_01
Patent number
US08093247B2

Reaction notes

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