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2,6-Lutidine → (3S, 4R)-3-[(R)-1-t-Butyldimethylsilyloxyethyl]-4-[(R)-1-methyl-2-(p-nitrobenzyloxycarbonylamino)ethylthio(thiocarbonyl)]thio-1-[1-(p-nitrobenzyloxycarbonyl)triphenylphosphoranylidenemethyl]azetidin-2-one

HRID 1075223
ノート
印刷プレビュー

反応式

HRID 1075223 の反応式
[Si:1]([O:8][C@@H:9]([C@@H:11]1[C@@H:14]([S:15][C:16]([S:18][C@H:19]([CH3:35])[CH2:20][NH:21][C:22]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][C:29]([N+:32]([O-:34])=[O:33])=[CH:28][CH:27]=2)=[O:23])=[S:17])[N:13]([CH:36](O)[C:37]([O:39][CH2:40][C:41]2[CH:46]=[CH:45][C:44]([N+:47]([O-:49])=[O:48])=[CH:43][CH:42]=2)=[O:38])[C:12]1=[O:51])[CH3:10])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].N1C(C)=CC=CC=1C.S(Cl)(Cl)=O.[C:64]1([P:70]([C:77]2[CH:82]=[CH:81][CH:80]=[CH:79][CH:78]=2)[C:71]2[CH:76]=[CH:75][CH:74]=[CH:73][CH:72]=2)[CH:69]=[CH:68][CH:67]=[CH:66][CH:65]=1>O1CCCC1.C(OCC)(=O)C>[Si:1]([O:8][C@@H:9]([C@@H:11]1[C@@H:14]([S:15][C:16]([S:18][C@H:19]([CH3:35])[CH2:20][NH:21][C:22]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][C:29]([N+:32]([O-:34])=[O:33])=[CH:28][CH:27]=2)=[O:23])=[S:17])[N:13]([C:36](=[P:70]([C:71]2[CH:72]=[CH:73][CH:74]=[CH:75][CH:76]=2)([C:77]2[CH:82]=[CH:81][CH:80]=[CH:79][CH:78]=2)[C:64]2[CH:65]=[CH:66][CH:67]=[CH:68][CH:69]=2)[C:37]([O:39][CH2:40][C:41]2[CH:42]=[CH:43][C:44]([N+:47]([O-:49])=[O:48])=[CH:45][CH:46]=2)=[O:38])[C:12]1=[O:51])[CH3:10])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:2])[CH3:3]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 79372,6-Lutidine2 回HCID 11776TriphenylphosphineHCID 24386Thionyl ChlorideHCID 131713038HCID 131713038、化合物

生成物 1

HCID 57179080(3S, 4R)-3-[(R)-1-t-Butyldimethylsilyloxyethyl]-4-[(R)-1-methyl-2-(p-nitrobenzyloxycarbonylamino)ethylthio(thiocarbonyl)]thio-1-[1-(p-nitrobenzyloxycarbonyl)triphenylphosphoranylidenemethyl]azetidin-2-one
収率 66%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of (3S, 4R)-3-[(R)-1-t-butyldimethylsilyloxyethyl]-1-[1-hydroxy-1-(p-nitrobenzyloxycarbonyl)methyl]-4-[(R)-1-methyl-2-(p-nitrobenzyloxycarbonylamino)ethylthio(thiocarbonyl)]thioazetidin-2-one (12.6 g, 16.1 mmole) in tetrahydrofuran (150 ml) were added at -15° C., in turn, 2,6-lutidine (2.00 g, 18.7 mmole) and thionyl chloride (2.11 g, 17.7 mmole), and the mixture was stirred at the same temperature for 15 minutes. 2,6-Lutidine (3.45 g, 32.2 mmole) and triphenylphosphine (12.6 g, 48.1 mmole) were then added and the mixture was stirred at 65° C. under a nitrogen stream for a further 35 hours. After completion of the reaction, the reaction mixture was diluted with ethyl acetate; washed with water and dried. The solvent was distilled off under reduced pressure and the residue was purified by column chromatography (250 g of silica gel); eluted with a 15-20% v/v solution of ethyl acetate in benzene; giving the desired compound (10.9 g; 66%) in the form of a yellow oil.

後処理

  1. stirringthe mixture was stirred at 65° C. under a nitrogen stream for a further 35 hours
  2. customAfter completion of the reaction
  3. washwashed with water
  4. customdried
  5. distillationThe solvent was distilled off under reduced pressure
  6. customthe residue was purified by column chromatography (250 g of silica gel)
  7. washeluted with a 15-20% v/v solution of ethyl acetate in benzene

出典と根拠

ORDレコード
ord-b5d52899338f4075a7f7efd864802605
出典データセット
uspto-grants-1983_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US04395418

反応ノート

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