Diisopropylethylamine → tert-butyl (2-(4-((2S,4R)-1-acetyl-4-((5-cyanopyridin-2-yl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)benzamido)ethyl)carbamate

HRID 882245Notes

Reaction equation

HRID 882245 reaction equation
[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:22]=[CH:21][C:17]([C:18](O)=[O:19])=[CH:16][CH:15]=3)=[CH:11][CH:12]=2)[C@H:7]([NH:23][C:24]2[CH:29]=[CH:28][C:27]([C:30]#[N:31])=[CH:26][N:25]=2)[CH2:6][C@@H:5]1[CH3:32])(=[O:3])[CH3:2].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[NH2:66][CH2:67][CH2:68][NH:69][C:70](=[O:76])[O:71][C:72]([CH3:75])([CH3:74])[CH3:73]>CN(C=O)C>[C:1]([N:4]1[C:13]2[C:8](=[CH:9][C:10]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([NH:66][CH2:67][CH2:68][NH:69][C:70](=[O:76])[O:71][C:72]([CH3:74])([CH3:73])[CH3:75])=[O:19])=[CH:16][CH:15]=3)=[CH:11][CH:12]=2)[C@H:7]([NH:23][C:24]2[CH:29]=[CH:28][C:27]([C:30]#[N:31])=[CH:26][N:25]=2)[CH2:6][C@@H:5]1[CH3:32])(=[O:3])[CH3:2]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 187201N-BOC-ethylenediamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 709764624-((2S,4R)-1-acetyl-4-((5-cyanopyridin-2-yl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)benzoic acid

Product 1

HCID 86709419tert-butyl (2-(4-((2S,4R)-1-acetyl-4-((5-cyanopyridin-2-yl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)benzamido)ethyl)carbamate

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a flask charged with 4-((2S,4R)-1-acetyl-4-((5-cyanopyridin-2-yl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)benzoic acid (for a preparation see Intermediate 4)((70 mg, 0.164 mmol) and HATU (74.9 mg, 0.197 mmol) was added DMF (3 mL) and the resulting mixture was treated with DIPEA (0.086 mL, 0.492 mmol). After 5 min, tert-butyl (2-aminoethyl)carbamate (52.6 mg, 0.328 mmol) was added and the mixture was stirred at room temperature for 1 h and then concentrated in vacuo. The residue was partitioned between EtOAc and water and the layers were separated. The aqueous phase was extracted with EtOAc (×2) and the combined organic layers were washed with saturated aqueous NaHCO3 (×3), then brine, dried over MgSO4 and concentrated in vacuo to give tert-butyl (2-(4-((2S,4R)-1-acetyl-4-((5-cyanopyridin-2-yl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)benzamido)ethyl)carbamate as a brown foam which was further purified by MDAP (HpH). to give tert-butyl (2-(4-((2S,4R)-1-acetyl-4-((5-cyanopyridin-2-yl)amino)-2-methyl-1,2,3,4-tetrahydroquinolin-6-yl)benzamido)ethyl)carbamate (65 mg, 0.114 mmol, 69.6% yield) as a white solid. LCMS (HpH, 2 min), Rt=1.00 min, MH+=569.

Workup

  1. concentrationconcentrated in vacuo
  2. customThe residue was partitioned between EtOAc and water
  3. customthe layers were separated
  4. extractionThe aqueous phase was extracted with EtOAc (×2)
  5. washthe combined organic layers were washed with saturated aqueous NaHCO3 (×3)
  6. dry with materialbrine, dried over MgSO4
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-66321e2b1ade44ea9898f82c05576c55
Source dataset
uspto-grants-2015_03
Patent number
US08993554B2

Reaction notes

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