Triethylamine → (1aR,5aR)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carb oxylic Acid ((S)-1-Hydroxymethyl-2-methyl-propyl)-amide

HRID 1623983Notes

Reaction equation

HRID 1623983 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][N:5]=[C:4]([N:8]2[C:15]3[C@@H:14]4[CH2:16][C@@H:13]4[CH2:12][C:11]=3[C:10]([C:17](O)=[O:18])=[N:9]2)[CH:3]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(CC)CC.[NH2:51][C@@H:52]([CH:55]([CH3:57])[CH3:56])[CH2:53][OH:54]>C(C#N)(C)=O>[OH:54][CH2:53][C@@H:52]([NH:51][C:17]([C:10]1[C:11]2[CH2:12][C@H:13]3[CH2:16][C@H:14]3[C:15]=2[N:8]([C:4]2[CH:3]=[C:2]([Cl:1])[CH:7]=[CH:6][N:5]=2)[N:9]=1)=[O:18])[CH:55]([CH3:57])[CH3:56]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 640993L-ValinolHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 68182318(1aR,5aR)-2-(4-chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid

Product 1

HCID 86669703(1aR,5aR)-2-(4-Chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carb oxylic Acid ((S)-1-Hydroxymethyl-2-methyl-propyl)-amideYield 79.8%

Reagents, catalysts & solvents 1

HCID 694302-OxopropiononitrileSolvent

Procedure

To a solution of (1aR,5aR)-2-(4-chloro-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (68.9 mg, 0.25 mmol), HATU (95 mg, 0.25 mmol) and Et3N (25.3 mg, 0.25 mmol) in AcCN (5 mL) was added (S)-2-amino-3-methylbutan-1-ol (25.3 mg, 0.25 mmol) at room temperature. The reaction was stirred overnight and concentrated. The residue was diluted with EtOAc (50 mL) and washed with water (50 mL). The organic layer was concentrated. The residue was purified by column chromatography to give the title compound (72 mg) as a white solid. LCMS m/z=361.5 [M+H]+; 1H NMR (400 MHz, CDCl3) δ 0.45 (dd, J=7.9, 4.6 Hz, 1H), 1.04 (d, J=6.8 Hz, 3H), 1.05 (d, J=6.8 Hz, 3H), 1.22-1.27 (m, 1H), 2.01-2.08 (m, 1H), 2.24-2.30 (m, 1H), 2.78-2.82 (m, 1H), 2.96 (d, J=16.8 Hz, 1H), 3.01 (dd, J=16.5, 6.3 Hz, 1H), 3.75-3.88 (m, 3H), 7.02 (d, J=7.8 Hz, 1H), 7.21 (dd, J=5.4, 1.8 Hz, 1H), 7.93 (d, J=1.8 Hz, 1H), 8.36 (d, J=5.4 Hz, 1H).

Workup

  1. concentrationconcentrated
  2. additionThe residue was diluted with EtOAc (50 mL)
  3. washwashed with water (50 mL)
  4. concentrationThe organic layer was concentrated
  5. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-b01ede85c8014fe99040e0bb187f12a9
Source dataset
uspto-grants-2014_07
Patent number
US08778950B2

Reaction notes

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