反応式
Cl.C(OCC)(=O)C.[CH2:8]([O:15][C:16]([NH:18][C@H:19]1[CH2:24][CH2:23][N:22]([C:25](OC(C)(C)C)=O)[CH2:21][C@H:20]1[O:32][CH3:33])=[O:17])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.ClC1[CH:36]=[CH:37][C:38]([N+:45]([O-:47])=[O:46])=[C:39]([CH:44]=1)[C:40]([O:42][CH3:43])=[O:41].C(=O)([O-])[O-].[K+].[K+]>C(OCC)(=O)C.CO>[CH2:8]([O:15][C:16]([NH:18][C@H:19]1[CH2:24][CH2:23][N:22]([C:25]2[CH:36]=[CH:37][C:38]([N+:45]([O-:47])=[O:46])=[C:39]([CH:44]=2)[C:40]([O:42][CH3:43])=[O:41])[CH2:21][C@H:20]1[O:32][CH3:33])=[O:17])[C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][CH:14]=1参加物
反応物 4
生成物 1
試薬・触媒・溶媒 2
実験手順
Methanol (15 ml) and a 4 N hydrochloric acid/ethyl acetate solution (30 mL) were added to tert-butyl cis(±)-4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidine-1-carboxylate obtained in Example (40a) (1.5 g, 4.12 mmol), and the mixture was stirred at room temperature for two hours. The reaction solution was concentrated under reduced pressure, azeotropically dehydrated by adding toluene, and dissolved in DMF (10 ml). Methyl 5-chloro-2-nitrobenzoate (900 mg, 4.17 mmol) and potassium carbonate (2.1 g, 15.2 mmol) were added, and the mixture was stirred at 175° C. for 24 hours. The reaction solution was diluted with ethyl acetate, washed with water, and concentrated under reduced pressure. Thereafter, the residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane) to obtain the title compound. The total resulting compound was used for the next reaction.
後処理
- concentrationThe reaction solution was concentrated under reduced pressure
- additionby adding toluene
- dissolutiondissolved in DMF (10 ml)
- stirringthe mixture was stirred at 175° C. for 24 hours
- washwashed with water
- concentrationconcentrated under reduced pressure
- customThereafter, the residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane)
出典と根拠
- ORDレコード
- ord-d6d5b5385b4443d38cbc37a118b4cc89
- 出典データセット
- uspto-grants-2013_09
- 特許番号
- US08536197B2
関連ノート
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