Diisopropylethylamine → HCID 178458653, compound

HRID 75911Notes

Reaction equation

HRID 75911 reaction equation
F[C:2]1[N:9]=[C:8]([NH:10][C:11]2[CH:15]=[C:14]([O:16][CH:17]([CH3:19])[CH3:18])[NH:13][N:12]=2)[C:7]([F:20])=[CH:6][C:3]=1[C:4]#[N:5].CCN(C(C)C)C(C)C.[F:30][C:31]1[CH:32]=[CH:33][C:34]([C@@H:37]([NH2:39])[CH3:38])=[N:35][CH:36]=1>CCCCO.O>[F:20][C:7]1[C:8]([NH:10][C:11]2[CH:15]=[C:14]([O:16][CH:17]([CH3:19])[CH3:18])[NH:13][N:12]=2)=[N:9][C:2]([NH:39][C@H:37]([C:34]2[CH:33]=[CH:32][C:31]([F:30])=[CH:36][N:35]=2)[CH3:38])=[C:3]([CH:6]=1)[C:4]#[N:5]

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 16097531(S)-1-(5-Fluoropyridin-2-yl)ethanamineHCID 178458617HCID 178458617, compound

Product 1

HCID 178458653HCID 178458653, compoundYield 58.5%

Reagents, catalysts & solvents 2

HCID 2631-ButanolSolventHCID 962WaterSolvent

Procedure

A solution of 2,5-difluoro-6-(5-isopropoxy-1H-pyrazol-3-ylamino)nicotinonitrile (Method 42, 0.30 g, 1.07 mmol), DIEA (0.16 g, 1.29 mmol), and (S)-1-(5-fluoropyridin-2-yl)ethanamine (Method 33; 0.22 g, 1.6 mmol) in n-BuOH (3 ml) was heated to 130° C. for 18 hours. The reaction was then cooled to room temperature, diluted with water (20 ml), and extracted with DCM (2×50 ml). The combined organic fractions were dried over Na2SO4, filtered, and then concentrated. The resulting oil was purified by column chromatography (hexanes-EtOAc=3:1) to give the title compound (0.25 g, 58%). 1H NMR (400 MHz, CD3OD) δ 8.40 (s, 1H), 7.56-7.55 (m, 2H), 7.45 (d, J=10.5 Hz, 1H), 5.42 (s, 1H), 5.25-5.22 (m, 1H), 4.63 (br s, 1H), 1.60 (d, J=7.0 Hz, 3H), 1.34 (d, J=6.1 Hz, 6H). MS: Calcd.: 399. Found: [M+H]+ 400.

Workup

  1. extractionextracted with DCM (2×50 ml)
  2. dry with materialThe combined organic fractions were dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe resulting oil was purified by column chromatography (hexanes-EtOAc=3:1)

Sources & evidence

ORD record
ord-b60e2c8d3bcf4e6ba5cda8b5d378d97d
Source dataset
uspto-grants-2014_09
Patent number
US08835465B2

Reaction notes

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