1,1'-Carbonyldiimidazole → HCID 118045458, compound

HRID 595831Notes

Reaction equation

HRID 595831 reaction equation
[NH2:1][C:2]1[C:7]([C:8]2[CH:26]=[CH:25][C:11]([C:12]([NH:14][C@@H:15]([C:18]3[CH:23]=[CH:22][CH:21]=[C:20]([Cl:24])[CH:19]=3)[CH2:16][OH:17])=[O:13])=[C:10]([F:27])[CH:9]=2)=[CH:6][C:5]([C@H:28]2[CH2:32][C@@H:31]([CH2:33][OH:34])[NH:30][CH2:29]2)=[CH:4][N:3]=1.CCN(C(C)C)C(C)C.[C:44](N1C=CN=C1)(N1C=CN=C1)=[O:45]>C(#N)C>[NH2:1][C:2]1[C:7]([C:8]2[CH:26]=[CH:25][C:11]([C:12]([NH:14][C@@H:15]([C:18]3[CH:23]=[CH:22][CH:21]=[C:20]([Cl:24])[CH:19]=3)[CH2:16][OH:17])=[O:13])=[C:10]([F:27])[CH:9]=2)=[CH:6][C:5]([C@@H:28]2[CH2:29][N:30]3[C:44](=[O:45])[O:34][CH2:33][C@@H:31]3[CH2:32]2)=[CH:4][N:3]=1

Participants

5

Reactant 3

HCID 682631,1'-CarbonyldiimidazoleHCID 81531DiisopropylethylamineHCID 118045404HCID 118045404, compound

Product 1

HCID 118045458HCID 118045458, compoundYield 9.5%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A solution of 4-(2-amino-5-((3R,5S)-5-(hydroxymethyl)pyrrolidin-3-yl)pyridin-3-yl)-N—((S)-1-(3-chlorophenyl)-2-hydroxyethyl)-2-fluorobenzamide (20 mg, 0.041 mmol) (Example 7) and DIEA (72 μL, 0.412 mmol) in acetonitrile (0.5 mL) was treated with carbonyldiimidazole (8.0 mg, 0.049 mmol). After 1 h, the starting material was completely consumed. The reaction mixture was quenched with 1.0 N aqueous NaOH solution (1.0 mL) and the mixture was stirred vigorously for 5 min, then, diluted with DCM (10 mL). The organics were washed with brine (2 mL) and dried over Na2SO4 and concentrated. The crude material was purified by reverse phase prep HPLC yielding 4-(2-amino-5-((6R,7aS)-3-oxohexahydropyrrolo[1,2-c]oxazol-6-yl)pyridin-3-yl)-N—((S)-1-(3-chlorophenyl)-2-hydroxyethyl)-2-fluorobenzamide (2.0 mg, 7% yield). LCMS (m/z): 511.3, 513.3 (MH+), 0.61 min; 1H NMR (400 MHz, CD3OD) δ ppm 7.92-7.84 (m, 2H), 7.46 (s, 1H), 7.44-7.40 (m, 1H), 7.38-7.35 (m, 1H), 7.34-7.28 (m, 1H), 5.19 (t, J=5.87 Hz, 1H), 4.61-4.56 (m, 1H), 4.34 (dd, J=3.52, 9.00 Hz, 1H), 4.24-4.15 (m, 1H), 3.92-3.80 (m, 1H), 3.74-3.62 (m, 1H), 2.41 (td, J=5.72, 11.64 Hz, 1H), 1.84-1.71 (m, 1H).

Workup

  1. customthe starting material was completely consumed
  2. customThe reaction mixture was quenched with 1.0 N aqueous NaOH solution (1.0 mL)
  3. additiondiluted with DCM (10 mL)
  4. washThe organics were washed with brine (2 mL)
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated
  7. customThe crude material was purified by reverse phase prep HPLC

Sources & evidence

ORD record
ord-0d35b90752b345dcbb57ac6ef2d7c921
Source dataset
uspto-grants-2016_01
Patent number
US09242996B2

Reaction notes

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