Diisopropylamine → tetrahydro-pyran-4-carboxylic-acid-N'-[2-(5-fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetyl]-N'-isopropyl-hydrazide

HRID 2250926Notes

Reaction equation

HRID 2250926 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:19][CH2:20][C:21](O)=[O:22])=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][C:15]([F:18])([F:17])[F:16])[CH:7]=1.[CH:24]([NH:27][NH:28][C:29]([CH:31]1[CH2:36][CH2:35][O:34][CH2:33][CH2:32]1)=[O:30])([CH3:26])[CH3:25].C(NC(C)C)(C)C.C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>CN(C=O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:19][CH2:20][C:21]([N:27]([CH:24]([CH3:26])[CH3:25])[NH:28][C:29]([CH:31]2[CH2:36][CH2:35][O:34][CH2:33][CH2:32]2)=[O:30])=[O:22])=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][C:15]([F:18])([F:16])[F:17])[CH:7]=1

Participants

6

Reactant 4

HCID 7912DiisopropylamineHCID 2733179PyBroPHCID 58689895tetrahydro-pyran-4-carboxylic acid N'-isopropyl-hydrazideHCID 58689904(5-Fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetic acid

Product 1

HCID 11569570tetrahydro-pyran-4-carboxylic-acid-N'-[2-(5-fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetyl]-N'-isopropyl-hydrazideYield 62%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of (5-fluoro-2′-trifluoromethoxy-biphenyl-2-yloxy)-acetic acid (280 mg, 0.85 mmol) and tetrahydro-pyran-4-carboxylic acid N′-isopropyl-hydrazide (1.2 eq. 190 mg, 1.02 mmol) in DMF (3 ml) was treated with diisopropyl amine (0.370 ml, 2.12 mmol) and PyBroP (595 mg, 1.275 mmol) at room temperature overnight. The reaction mixture was partitioned between 1N HCl and ethyl acetate. The organic layer was successively washed with saturated sodium bicarbonate and brine, then dried over sodium sulfate, filtered and concentrated. The crude was absorbed on silica and purified on a silica gel column with a 50-100% ethyl acetate/hexanes gradient to afford the product as a white solid (262 mg, 62%). MS m/e 499.23 (M+H+)

Workup

  1. customThe reaction mixture was partitioned between 1N HCl and ethyl acetate
  2. washThe organic layer was successively washed with saturated sodium bicarbonate and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude was absorbed on silica
  7. custompurified on a silica gel column with a 50-100% ethyl acetate/hexanes gradient

Sources & evidence

ORD record
ord-5fa3da66c1d5496197769ec4072438ea
Source dataset
uspto-grants-2008_01
Patent number
US07317125B2

Reaction notes

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