Triethylamine → (1aR,5aR)-2-(4-Bromo-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic Acid ((S)-1-Hydroxymethyl-2,2-dimethyl-propyl)-amide

HRID 1623962Notes

Reaction equation

HRID 1623962 reaction equation
[Br: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]([OH:19])=O)=[N:9]2)[CH:3]=1.C(N(CC)CC)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:51][C@@H:52]([C:55]([CH3:58])([CH3:57])[CH3:56])[CH2:53][OH:54]>CN(C=O)C>[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]([Br:1])[CH:7]=[CH:6][N:5]=2)[N:9]=1)=[O:19])[C:55]([CH3:58])([CH3:57])[CH3:56]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 2734079(2S)-2-Amino-3,3-dimethyl-1-butanolHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 68182432(1aR,5aR)-2-(4-bromopyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid

Product 1

HCID 86669700(1aR,5aR)-2-(4-Bromo-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic Acid ((S)-1-Hydroxymethyl-2,2-dimethyl-propyl)-amideYield 94.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
23 °C

Procedure

To a solution of (1aR,5aR)-2-(4-bromo-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2.00 g, 6.25 mmol) and triethylamine (1.741 mL, 12.49 mmol) in DMF (15 mL) was added HATU (2.423 g, 6.37 mmol). The reaction was stirred at 23° C. for 5 min, then was added (S)-2-amino-3,3-dimethylbutan-1-ol (0.805 g, 6.87 mmol). The reaction was stirred at 23° C. for 1 h then concentrated. The residue was purified by silica gel column chromatography to give the title compound as a white solid (2.48 g). LCMS m/z=419.2 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 0.44 (td, J=4.6, 3.4 Hz, 1H), 1.05 (s, 9H), 1.24 (td, J=7.8, 4.9 Hz, 1H), 2.23-2.29 (m, 1H), 2.46 (t, J=5.5 Hz, 1H), 2.78-2.83 (m, 1H), 2.91 (d, J=16.7 Hz, 1H), 3.01 (dd, J=16.6, 6.3 Hz, 1H), 3.66-3.72 (m, 1H), 3.93-4.01 (m, 2H), 7.01 (d, J=8.8 Hz, 1H), 7.37 (dd, J=5.3, 1.6 Hz, 1H), 8.09 (d, J=1.6 Hz, 1H) 8.28 (d, J=5.3 Hz, 1H).

Workup

  1. stirringThe reaction was stirred at 23° C. for 1 h
  2. concentrationthen concentrated
  3. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-a1c375630be54f75ba35857d5187b2a7
Source dataset
uspto-grants-2014_07
Patent number
US08778950B2

Reaction notes

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