Ethyl Acetate → N-Cyclopropyl-4-methyl-3-[3-[[1-methyl-1-[2-[2-(1-pyrrolidinyl)ethoxy]phenyl]ethyl]amino]-2-oxo-1(2H)-pyrazinyl]-benzamide

HRID 337047Notes

Reaction equation

HRID 337047 reaction equation
[CH:1]1([NH:4][C:5](=[O:31])[C:6]2[CH:11]=[CH:10][C:9]([CH3:12])=[C:8]([N:13]3[CH:18]=[CH:17][N:16]=[C:15]([NH:19][C:20]([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=4[OH:29])([CH3:22])[CH3:21])[C:14]3=[O:30])[CH:7]=2)[CH2:3][CH2:2]1.Cl.Cl[CH2:34][CH2:35][N:36]1[CH2:40][CH2:39][CH2:38][CH2:37]1.C(=O)([O-])[O-].[Cs+].[Cs+].C(OCC)(=O)C>CN(C)C=O>[CH:1]1([NH:4][C:5](=[O:31])[C:6]2[CH:11]=[CH:10][C:9]([CH3:12])=[C:8]([N:13]3[CH:18]=[CH:17][N:16]=[C:15]([NH:19][C:20]([CH3:22])([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=4[O:29][CH2:34][CH2:35][N:36]4[CH2:40][CH2:39][CH2:38][CH2:37]4)[CH3:21])[C:14]3=[O:30])[CH:7]=2)[CH2:3][CH2:2]1

Participants

6

Reactant 4

HCID 8857Ethyl AcetateHCID 10796Cesium carbonate2×HCID 816681-(2-Chloroethyl)pyrrolidine hydrochloride2×HCID 66686301N-cyclopropyl-3-(3-(2-(2-hydroxyphenyl)propan-2-ylamino)-2-oxopyrazin-1(2H)-yl)-4-methylbenzamide

Product 1

HCID 66686303N-Cyclopropyl-4-methyl-3-[3-[[1-methyl-1-[2-[2-(1-pyrrolidinyl)ethoxy]phenyl]ethyl]amino]-2-oxo-1(2H)-pyrazinyl]-benzamideYield 27.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a stirred solution of N-cyclopropyl-3-(3-(2-(2-hydroxyphenyl)propan-2-ylamino)-2-oxopyrazin-1(2H)-yl)-4-methylbenzamide (Example 134, 0.1 g) in N,N-dimethylformamide (3 mL), N-(2-chloroethyl)-pyrrolidine, hydrochloride (0.12 g) and cesium carbonate (0.47 g) were added. The reaction was stirred under nitrogen at 80° C. for 12 h. After 2 h additional batches of N-(2-chloroethyl)-pyrrolidine hydrochloride (0.12 g) and cesium carbonate (0.47 g) were added. The reaction mixture was stirred at 100° C. for 10 h and then at 90° C. for 10 h. Ethyl acetate was added and the mixture was washed with water and brine. The organic phase was dried (Na2SO4), filtered and concentrated in vacuo. Purification by preparative HPLC (Gemini column—acetonitrile/0.1% ammonia mobile phase) afforded the title compound as a solid (34 mg).

Workup

  1. stirringThe reaction mixture was stirred at 100° C. for 10 h
  2. waitat 90° C. for 10 h
  3. washthe mixture was washed with water and brine
  4. dry with materialThe organic phase was dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification by preparative HPLC (Gemini column—acetonitrile/0.1% ammonia mobile phase)

Sources & evidence

ORD record
ord-a1faeb060f7a41689aab2f647c025782
Source dataset
uspto-grants-2014_11
Patent number
US08889692B2

Reaction notes

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