1,2-Dichloroethane → (S)-3,5-dichloro-4-(2-(2-(6-chloronicotinoyloxy)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)pyridine 1-oxide

HRID 1776650ノート

反応式

HRID 1776650 の反応式
[Cl:1][C:2]1[CH:3]=[N+:4]([O-:31])[CH:5]=[C:6]([Cl:30])[C:7]=1[CH2:8][C@@H:9]([C:15]1[CH:20]=[CH:19][C:18]([O:21][CH:22]([F:24])[F:23])=[C:17]([O:25][CH2:26][CH:27]2[CH2:29][CH2:28]2)[CH:16]=1)[O:10][C:11](=[O:14])[CH2:12][OH:13].[Cl:32][C:33]1[CH:41]=[CH:40][C:36]([C:37](O)=[O:38])=[CH:35][N:34]=1.C(Cl)CCl>C(Cl)Cl.CN(C1C=CN=CC=1)C>[Cl:30][C:6]1[CH:5]=[N+:4]([O-:31])[CH:3]=[C:2]([Cl:1])[C:7]=1[CH2:8][C@H:9]([O:10][C:11](=[O:14])[CH2:12][O:13][C:37](=[O:38])[C:36]1[CH:40]=[CH:41][C:33]([Cl:32])=[N:34][CH:35]=1)[C:15]1[CH:20]=[CH:19][C:18]([O:21][CH:22]([F:24])[F:23])=[C:17]([O:25][CH2:26][CH:27]2[CH2:29][CH2:28]2)[CH:16]=1

参加物

6

反応物 3

HCID 111,2-DichloroethaneHCID 792226-Chloronicotinic acidHCID 86679512(S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-hydroxyacetoxy)ethyl)pyridine 1-oxide

生成物 1

HCID 86679594(S)-3,5-dichloro-4-(2-(2-(6-chloronicotinoyloxy)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)pyridine 1-oxide収率 78%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6344Dichloromethane溶媒

実験手順

To a mixture of (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-hydroxyacetoxy)ethyl)pyridine 1-oxide (See Scheme 21, step 6-9) (200 mg, 0.418 mmol), 6-chloronicotinic acid (72.5 mg, 0.460 mmol) and EDC (240 mg, 1.255 mmol) in dry DCM (10 ml), DMAP (51.1 mg, 0.418 mmol) was added, and stirring was continued for a week-end at room temperature. The solvent was evaporated; the residue was portioned between sat. sol. NaHCO3 and ethyl acetate, the organic phase was washed with brine, dried over sodium sulfate and evaporated, the residue was purified by flash chromatography on silica gel (eluent: DCM/MeOH/32% NH4OH 98/2/0.2) and (S)-3,5-dichloro-4-(2-(2-(6-chloronicotinoyloxy)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)pyridine 1-oxide was obtained as a white solid (202 mg, 0.327 mmol, 78% yield, MS/ESI+ 617.2 [MH]+).

後処理

  1. additionwas added
  2. waitwas continued for a week
  3. customat room temperature
  4. customThe solvent was evaporated
  5. washthe organic phase was washed with brine
  6. dry with materialdried over sodium sulfate
  7. customevaporated
  8. customthe residue was purified by flash chromatography on silica gel (eluent: DCM/MeOH/32% NH4OH 98/2/0.2)

出典と根拠

ORDレコード
ord-1e787623bf4447cc8b7c1621cd3a086f
出典データセット
uspto-grants-2016_02
特許番号
US09265768B2

反応ノート

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