Sodium borohydride → (7R,8R,9R)-10-Acetyl-7,8-dihydroxy-2,3-dimethyl-9-phenyl-7,8,9,10-tetrahydroimidazo[1,2-h]-[1,7]naphthyridine

HRID 2249709ノート

反応式

HRID 2249709 の反応式
[C:1]([N:4]1[C:13]2[C:12]3=[N:14][C:15]([CH3:18])=[C:16]([CH3:17])[N:11]3[CH:10]=[CH:9][C:8]=2[C:7](=[O:19])[C@H:6]([OH:20])[C@H:5]1[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)(=[O:3])[CH3:2].[BH4-].[Na+]>CO>[C:1]([N:4]1[C:13]2[C:12]3=[N:14][C:15]([CH3:18])=[C:16]([CH3:17])[N:11]3[CH:10]=[CH:9][C:8]=2[C@@H:7]([OH:19])[C@H:6]([OH:20])[C@H:5]1[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)(=[O:3])[CH3:2]

参加物

4

反応物 2

HCID 4311764Sodium borohydrideHCID 69290336(8R,9R)-10-acetyl-8-hydroxy-2,3-dimethyl-9-phenyl-7,8,9,10-tetrahydroimidazo[1,2-h][1,7]naphthyridin-7-one

生成物 1

HCID 69288589(7R,8R,9R)-10-Acetyl-7,8-dihydroxy-2,3-dimethyl-9-phenyl-7,8,9,10-tetrahydroimidazo[1,2-h]-[1,7]naphthyridine収率 80%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

0.2 g (0.6 mmol) of (8R,9R)-10-acetyl-8-hydroxy-2,3-dimethyl-9-phenyl-7,8,9,10-tetrahydroimidazo[1,2-h][1,7]naphthyridin-7-one is dissolved in 15 ml of methanol and admixed with 40 mg (1.1 mmol) of sodium borohydride in portions with ice cooling. After 10 min, hydrolysis is effected using saturated sodium hydrogencarbonate solution and extraction using dichloromethane. The organic phase is dried over magnesium sulphate and evaporated. The residue is crystallized using diethyl ether. 0.16 g (80%) of the title compound is isolated as a colourless solid (m.p. 260-261° C.).

後処理

  1. customhydrolysis
  2. extractionsodium hydrogencarbonate solution and extraction
  3. dry with materialThe organic phase is dried over magnesium sulphate
  4. customevaporated
  5. customThe residue is crystallized

出典と根拠

ORDレコード
ord-ea8179929f6e4adeb9b2132219a183d9
出典データセット
uspto-grants-2008_01
特許番号
US07314935B2

反応ノート

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