1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 86603695, compound

HRID 2376073Notes

Reaction equation

HRID 2376073 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][CH:26]=1)[CH2:5][N:6]1[CH2:11][CH2:10][CH2:9][C@@H:8]([NH:12][C:13]2[N:14]=[CH:15][C:16](/[CH:19]=[CH:20]/[C:21](O)=[O:22])=[N:17][CH:18]=2)[CH2:7]1.[O:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH:28]1[O:33][NH2:34].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C>CN(C=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][CH:26]=1)[CH2:5][N:6]1[CH2:11][CH2:10][CH2:9][C@@H:8]([NH:12][C:13]2[N:14]=[CH:15][C:16](/[CH:19]=[CH:20]/[C:21]([NH:34][O:33][CH:28]3[CH2:29][CH2:30][CH2:31][CH2:32][O:27]3)=[O:22])=[N:17][CH:18]=2)[CH2:7]1

Participants

6

Reactant 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 5142091O-(Tetrahydropyran-2-yl)hydroxylamineHCID 68960055HCID 68960055, compound

Product 1

HCID 86603695HCID 86603695, compoundYield 91%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
0 °C

Procedure

A mixture of (2E)-3-(5-{[(3R)-1-(3-chlorobenzyl)-3-piperidinyl]amino}-2-pyrazinyl)acrylic acid (218 mg, 0.59 mmol), O-(tetrahydro-2H-pyran-2-yl)hydroxylamine (82 mg, 0.70 mmol), HOBt (103 mg, 0.76 mmol) and EDCI (146 mg, 0.76 mmol) in DMF (6 mL) was stirred at 0° C. for 1 hr and the mixture was stirred at ambient temperature for 18 hrs. The reaction mixture was evaporated in vacuo and the residue was partitioned between saturated sodium bicarbonate solution and EtOAc. The organic layer was separated, washed water and brine, dried over magnesium sulfate, and evaporated in vacuo. The residue was purified by silica gel column chromatography (chloroform-MeOH=95-5) to give (2E)-3-(5-{[(3R)-1-(3-chlorobenzyl)-3-piperidinyl]amino}-2-pyrazinyl)-N-(tetrahydro-2H-pyran-2-yloxy)acrylamide (251 mg, 91%) as an amorphous powder.

Workup

  1. stirringthe mixture was stirred at ambient temperature for 18 hrs
  2. customThe reaction mixture was evaporated in vacuo
  3. customthe residue was partitioned between saturated sodium bicarbonate solution and EtOAc
  4. customThe organic layer was separated
  5. washwashed water and brine
  6. dry with materialdried over magnesium sulfate
  7. customevaporated in vacuo
  8. customThe residue was purified by silica gel column chromatography (chloroform-MeOH=95-5)

Sources & evidence

ORD record
ord-03b182bf585d47d8ab02a94f52f66c31
Source dataset
uspto-grants-2008_12
Patent number
US07465731B2

Reaction notes

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