1,2-Dichloroethane → HCID 86687143, compound

HRID 1402301Notes

Reaction equation

HRID 1402301 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][NH2:9])=[N:6][CH:7]=1.[F:10][C@H:11]1[CH2:15][N:14]([CH3:16])[C@H:13]([C:17](O)=[O:18])[CH2:12]1.C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl>C(Cl)Cl.CN(C=O)C.O>[F:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][NH:9][C:17]([C@@H:13]2[CH2:12][C@@H:11]([F:10])[CH2:15][N:14]2[CH3:16])=[O:18])=[N:6][CH:7]=1

Participants

8

Reactant 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 199167865-Fluoro-2-hydrazinylpyridineHCID 55300764(4R)-4-Fluoro-1-methyl-L-proline

Product 1

HCID 86687143HCID 86687143, compoundYield 47.9%

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

A solution of (5-fluoro-pyridin-2-yl)-hydrazine (378 mg, 2.98 mmol), Intermediate 91a (600 mg, 4.08 mmol) and HOBt.H2O (44 mg, 0.12 mmol) in DCM (10 mL) and DMF (3 mL) was added EDC (628 mg, 3.28 mmol) portionwise at RT and the mixture stirred at RT for 17 h. The solution was diluted with water and extracted with DCM. The combined organics were dried and concentrated in vacuo. The residue was purified by FCC, using 0-7.5% [2M NH3 in MeOH] in DCM, to give the title compound as light orange powder (366 mg, 35%). LCMS (Method 3): Rt 0.56 min, m/z 257 [MH+].

Workup

  1. extractionextracted with DCM
  2. customThe combined organics were dried
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by FCC

Sources & evidence

ORD record
ord-53bdc4e8627e4bcd8b71e10f5ec3f943
Source dataset
uspto-grants-2014_12
Patent number
US08907094B2

Reaction notes

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