Boron trifluoride etherate → HCID 86746809、化合物

HRID 248248

反応式

HRID 248248 の反応式
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:52])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([OH:51])[CH2:45]2)[CH:7]([CH3:53])[CH2:6][CH2:5][C:4]1=[O:54])[CH3:2].B(F)(F)F.[CH3:59][CH2:60]OCC.[N+](=CC)=[N-]>CCOCC>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:52])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([O:51][CH2:59][CH3:60])[CH2:45]2)[CH:7]([CH3:53])[CH2:6][CH2:5][C:4]1=[O:54])[CH3:2]

参加物

5

反応物 3

HCID 8000Boron trifluoride etherateHCID 70695DiazoethaneHCID 5711006017-Ethyl-1-hydroxy-12-[2'(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

生成物 1

HCID 86746809HCID 86746809、化合物

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒

実験手順

To a solution of 17-ethyl-1-hydroxy-12-[2'-(3",4"-dihydroxycyclohexyl)-1'-methylvinyl]-23,25-di-methoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone (200 mg, Example 38) in ether (6 ml) is added borontrifluoride etherate (10 μl) followed by freshly prepared diazoethane (100 fold excess). The mixture is stirred at room temperature for 15 min and quenched with sat'd aqueous sodium bicarbonate solution. The organic layer is separated, washed (sat'd aqueous NaCl) and dried over anhydrous magnesium sulfate. Removal of solvent followed by preparative tlc on silica to separate the regioisomers gives the title compound.

後処理

  1. customquenched with sat'd aqueous sodium bicarbonate solution
  2. customThe organic layer is separated
  3. washwashed (sat'd aqueous NaCl)
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customRemoval of solvent
  6. customto separate the regioisomers

出典と根拠

ORDレコード
ord-1cbfb92b7dc742c687519dc92c8eaa50
出典データセット
uspto-grants-1993_05
特許番号
US05208228

関連ノート

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