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6-chloro-3-(2-ethoxy-3,4-dioxocyclobut-1-enylamino)-2-hydroxy-N,N-dimethylbenzamide → 6-chloro-2-hydroxy-N,N-dimethyl-3-(2-{[(R)-(5-methylfuran-2-yl)-(3-methyloxetan-3-yl)methyl]amino}-3,4-dioxocyclobut-1-enylamino)benzamide

HRID 1528217
ノート
印刷プレビュー

反応式

HRID 1528217 の反応式
[CH3:1][C:2]1[O:6][C:5]([C@H:7]([NH2:13])[C:8]2([CH3:12])[CH2:11][O:10][CH2:9]2)=[CH:4][CH:3]=1.[Cl:14][C:15]1[C:20]([C:21]([N:23]([CH3:25])[CH3:24])=[O:22])=[C:19]([OH:26])[C:18]([NH:27][C:28]2[C:31](=O)[C:30](=[O:33])[C:29]=2[O:34]CC)=[CH:17][CH:16]=1>CO>[Cl:14][C:15]1[C:20]([C:21]([N:23]([CH3:25])[CH3:24])=[O:22])=[C:19]([OH:26])[C:18]([NH:27][C:28]2[C:29](=[O:34])[C:30](=[O:33])[C:31]=2[NH:13][C@@H:7]([C:5]2[O:6][C:2]([CH3:1])=[CH:3][CH:4]=2)[C:8]2([CH3:12])[CH2:9][O:10][CH2:11]2)=[CH:17][CH:16]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 895255256-chloro-3-(2-ethoxy-3,4-dioxocyclobut-1-enylamino)-2-hydroxy-N,N-dimethylbenzamideHCID 89525580C-(R)-(5-methylfuran-2-yl)-C-(3-methyloxetan-3-yl)methylamine

生成物 1

HCID 715259756-chloro-2-hydroxy-N,N-dimethyl-3-(2-{[(R)-(5-methylfuran-2-yl)-(3-methyloxetan-3-yl)methyl]amino}-3,4-dioxocyclobut-1-enylamino)benzamide収率 53%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

A mixture of 412 mg (2.27 mmol, 1.1 eq) of C—(R)-(5-methylfuran-2-yl)-C-(3-methyloxetan-3-yl)methylamine (prepared in EXAMPLE 50, steps 1 to 4) and 700 mg (2.07 mmol, 1 eq) of 6-chloro-3-(2-ethoxy-3,4-dioxocyclobut-1-enylamino)-2-hydroxy-N,N-dimethylbenzamide in 45 ml of methanol was stirred at ambient temperature for 3 days. The methanol was evaporated off and the residue was taken up with ethyl acetate and washed with a 1 M aqueous sodium dihydrogen phosphate solution. The organic phase was dried over anhydrous sodium sulfate, filtered and concentrated. The residue (0.90 g) was chromatographed on silica gel (80 g prepacked column, eluent dichloromethane/methanol, from 0 to 10% of methanol). 520 mg of 6-chloro-2-hydroxy-N,N-dimethyl-3-(2-{[(R)-(5-methylfuran-2-yl)-(3-methyloxetan-3-yl)methyl]amino}-3,4-dioxocyclobut-1-enylamino)benzamide were obtained in the form of an ochre solid. Yield=53%. Mp=165-167° C.

後処理

  1. customThe methanol was evaporated off
  2. washwashed with a 1 M aqueous sodium dihydrogen phosphate solution
  3. dry with materialThe organic phase was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue (0.90 g) was chromatographed on silica gel (80 g prepacked column, eluent dichloromethane/methanol, from 0 to 10% of methanol)

出典と根拠

ORDレコード
ord-9de151fb976e4d98a7b2f3307e71b6df
出典データセット
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09090596B2

反応ノート

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