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Triethylamine → 2-Chloro-6-{3-chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(3-methyl-2-oxo-2,3-dihydro-benzooxazol-5-yl)-propyl]-phenoxy}-nicotinic acid methyl ester

HRID 2096872
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HRID 2096872 반응식
[Cl:1][C:2]1[CH:7]=[C:6]([OH:8])[CH:5]=[CH:4][C:3]=1[CH:9]([CH3:27])[C:10]([C:16]1[CH:17]=[CH:18][C:19]2[O:23][C:22](=[O:24])[N:21]([CH3:25])[C:20]=2[CH:26]=1)([OH:15])[C:11]([F:14])([F:13])[F:12].[CH3:28][O:29][C:30]([C:32]1[C:33]([Cl:39])=[N:34][C:35](Cl)=[CH:36][CH:37]=1)=[O:31].C(N(CC)CC)C.N12CCN(CC1)CC2>CN(C=O)C.O>[CH3:28][O:29][C:30](=[O:31])[C:32]1[CH:37]=[CH:36][C:35]([O:8][C:6]2[CH:5]=[CH:4][C:3]([CH:9]([CH3:27])[C:10]([OH:15])([C:16]3[CH:17]=[CH:18][C:19]4[O:23][C:22](=[O:24])[N:21]([CH3:25])[C:20]=4[CH:26]=3)[C:11]([F:12])([F:13])[F:14])=[C:2]([Cl:1])[CH:7]=2)=[N:34][C:33]=1[Cl:39]
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참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 9237DabcoHCID 11106516Methyl 2,6-dichloropyridine-3-carboxylateHCID 666969865-[2-(2-Chloro-4-hydroxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-3-methyl-3H-benzooxazol-2-one

생성물 1

HCID 723101372-Chloro-6-{3-chloro-4-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(3-methyl-2-oxo-2,3-dihydro-benzooxazol-5-yl)-propyl]-phenoxy}-nicotinic acid methyl ester
수율 87%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

5-[2-(2-Chloro-4-hydroxy-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-3-methyl-3H-benzooxazol-2-one (157 mg, obtained in Example 172) was added to a solution of methyl-2,6-dichloropyridine-3-carboxylate (81 mg, [CAS Reg. No. 65515-28-8]) in DMF (3 mL) followed by the addition of triethylamine (0.071 mL). Stirring was continued for 10 minutes at r.t. Then 1,4-diazabicyclo[2.2.2]octane (7 mg) was added. The mixture was stirred over night at r.t. The reaction mixture was poured into water, extracted with ethyl acetate and the organic layer was washed with brine, dried over Na2SO4 and evaporated. The residue was purified by flash chromatography (silica gel, gradient of heptane in ethyl acetate) to give the desired compound as a colorless foam (195 mg, 87%). MS (neg. ion, m/e)=569.2 [(M−H)−].

후처리

  1. stirringThe mixture was stirred over night at r.t
  2. extractionextracted with ethyl acetate
  3. washthe organic layer was washed with brine
  4. dry with materialdried over Na2SO4
  5. customevaporated
  6. customThe residue was purified by flash chromatography (silica gel, gradient of heptane in ethyl acetate)

출처 및 근거

ORD 기록
ord-a61a7e81c51d49b5b5ecf7cf7bf4af0b
출처 데이터셋
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08450313B2

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