Triethylamine → Methyl 6-((1R,2S)-2-(tert-butoxycarbonylamino)cyclopentylamino)-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinate

HRID 2092786Notes

Reaction equation

HRID 2092786 reaction equation
Cl[C:2]1[CH:11]=[C:10]([C:12]#[N:13])[C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([S:21]([CH3:24])(=[O:23])=[O:22])[CH:16]=2)[N:3]=1.CCN(CC)CC.[NH2:32][C@@H:33]1[CH2:37][CH2:36][CH2:35][C@@H:34]1[NH:38][C:39](=[O:45])[O:40][C:41]([CH3:44])([CH3:43])[CH3:42].C([O-])(O)=O.[Na+]>CN(C=O)C>[C:41]([O:40][C:39]([NH:38][C@H:34]1[CH2:35][CH2:36][CH2:37][C@H:33]1[NH:32][C:2]1[CH:11]=[C:10]([C:12]#[N:13])[C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([S:21]([CH3:24])(=[O:23])=[O:22])[CH:16]=2)[N:3]=1)=[O:45])([CH3:44])([CH3:42])[CH3:43]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 45091940tert-butyl N-[(1S,2R)-2-aminocyclopentyl]carbamateHCID 58317716Methyl 6-chloro-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinate

Product 1

HCID 67238760Methyl 6-((1R,2S)-2-(tert-butoxycarbonylamino)cyclopentylamino)-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinateYield 61.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of methyl 6-chloro-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinate (165.0 mg, 0.451 mmol), Et3N (0.15 mL, 1.076 mmol), and tert-butyl (1S,2R)-2-aminocyclopentylcarbamate (142.0 mg, 0.709 mmol) in DMF (6 mL) was stirred at 60° C. for 12 h. Saturated aq NaHCO3 (20 mL) was added to the mixture, which was subsequently extracted with EtOAc (2×30 mL). The organic layers were washed with saturated aq NaHCO3 (20 mL), water (20 mL) and brine (20 mL), were dried over anhydrous Na2SO4, and filtered (DM1020). The filtrate was concentrated under reduced pressure. The residue was purified by column chromatography (SiO2, hexanes/EtOAc=1/1) and then triturated with IPE to provide the title compound (147 mg).

Workup

  1. extractionwas subsequently extracted with EtOAc (2×30 mL)
  2. washThe organic layers were washed with saturated aq NaHCO3 (20 mL), water (20 mL) and brine (20 mL)
  3. dry with materialwere dried over anhydrous Na2SO4
  4. filtrationfiltered (DM1020)
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customThe residue was purified by column chromatography (SiO2, hexanes/EtOAc=1/1)
  7. customtriturated with IPE

Sources & evidence

ORD record
ord-a265ea72bfe24ea8b104ed4c771657b7
Source dataset
uspto-grants-2013_05
Patent number
US08440689B2

Reaction notes

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