Diisopropylethylamine → allyl (4R,5S,6S)-3-[(2S,4S)-1-allyloxycarbonyl-2-(2-fluoroethyloxymethyl)pyrrolidin-4-yl]thio-6-[(1R)-1-(t-butyldimethylsilyloxy)ethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate

HRID 1464731ノート

反応式

HRID 1464731 の反応式
[C:1]([Si:5]([CH3:28])([CH3:27])[O:6][C@@H:7]([C@H:9]1[C:15](=[O:16])[N:14]2[C@@H:10]1[C@@H:11]([CH3:26])[C:12]([S:23]([CH3:25])=O)=[C:13]2[C:17]([O:19][CH2:20][CH:21]=[CH2:22])=[O:18])[CH3:8])([CH3:4])([CH3:3])[CH3:2].[CH2:29]([O:32][C:33]([N:35]1[CH2:39][C@@H](S)[CH2:37][C@H:36]1[CH2:41][O:42][CH2:43][CH2:44][F:45])=[O:34])[CH:30]=[CH2:31].C(N(C(C)C)CC)(C)C>CN(C)C=O.C(OCC)C>[CH2:29]([O:32][C:33]([N:35]1[CH2:39][C@@H:25]([S:23][C:12]2[C@H:11]([CH3:26])[C@H:10]3[N:14]([C:15](=[O:16])[C@@H:9]3[C@H:7]([O:6][Si:5]([C:1]([CH3:4])([CH3:3])[CH3:2])([CH3:28])[CH3:27])[CH3:8])[C:13]=2[C:17]([O:19][CH2:20][CH:21]=[CH2:22])=[O:18])[CH2:37][C@H:36]1[CH2:41][O:42][CH2:43][CH2:44][F:45])=[O:34])[CH:30]=[CH2:31]

参加物

6

反応物 3

HCID 81531DiisopropylethylamineHCID 57241269(2S,4S)-1-allyloxycarbonyl-2-(2-fluoroethoxymethyl)-4-mercaptopyrrolidineHCID 86747784allyl (4R,5S,6S)-6-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-methyl-3-methylsulfinyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate

生成物 1

HCID 57089568allyl (4R,5S,6S)-3-[(2S,4S)-1-allyloxycarbonyl-2-(2-fluoroethyloxymethyl)pyrrolidin-4-yl]thio-6-[(1R)-1-(t-butyldimethylsilyloxy)ethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate収率 43.4%

試薬・触媒・溶媒 2

HCID 3283Diethyl Ether溶媒HCID 6228Dimethylformamide溶媒

実験手順

To a mixture of allyl (4R,5S,6S)-6-[(1R)-1-(tertbutyldimethylsilyloxy)ethyl]-4-methyl-3-methylsulfinyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate (33 mg) and (2S,4S)-1-allyloxycarbonyl-2-(2-fluoroethyloxymethyl)-4-mercaptopyrrolidine (21 mg) in N,N-dimethylformamide (1.0 ml) was added diisopropylethylamine (10 mg). After stirring for 2 hours at ambient temperature, the solution was diluted with diethyl ether (10 ml) and washed with water, 1N hydrochloric acid, aqueous sodium bicarbonate solution and brine, dried, and evaporated under reduced pressure. The residue was purified by preparative thin layer chromatography [ethyl acetate-n-hexane (1:1.5, V/V)] to give allyl (4R,5S,6S)-3-[(2S,4S)-1-allyloxycarbonyl-2-(2-fluoroethyloxymethyl)pyrrolidin-4-ylthio]-6-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate (21 mg).

後処理

  1. washwashed with water, 1N hydrochloric acid, aqueous sodium bicarbonate solution and brine
  2. customdried
  3. customevaporated under reduced pressure
  4. customThe residue was purified by preparative thin layer chromatography [ethyl acetate-n-hexane (1:1.5, V/V)]

出典と根拠

ORDレコード
ord-527a11e1bcbc41588fcf0a300e563824
出典データセット
uspto-grants-1994_04
特許番号
US05306816

反応ノート

読み込み中…