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利用Reformatsky反应合成1-β-碳氢霉烯类抗生素中间体

Synthesis of Intermediates of 1-β-Methy Carbapenem Antibiotics by Reformatsky Reaction
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摘要 以(2R)-3-[(3S,4R)-1-(叔丁基二甲基硅氧基)乙基]-4-乙酰氧基氮杂环丁-2-酮为母体,2-溴乙(丙)酸酯或2-溴丙酰胺为亲核试剂,通过Reformatsky反应合成了一系列新型的1-β-碳氢霉烯类抗生素中间体——3-{(2R)-2-[(3S,4R)-1-(叔丁基二甲基硅氧基)乙基]氮杂环丁-2-酮-4-基}乙(丙)酸酯(3a~3d)和3-{(2R)-2-[(3S,4R)-1-(叔丁基二甲基硅氧基)乙基]氮杂环丁-2-酮-4-基}-N,N-二取代丙酰胺(3e,3i和3k),其结构经1H NMR和13C NMR表征,其中3a~3e和3i未见文献报道。 A series of novel intermediates of 1-β-methyl earbapenem antibiotics, 3-[ (2R)-2-{( 3S, 4R) -4-acetoxy-3-[ (R) -1-(t-butyldimethylsilyloxy) ] ethyl } azetidin-2-one-4-yl ] acetic ( or propionic ) acid esters ( 3a - 3d) and 3-[ ( 2R ) -2-{ ( 3S, 4R ) -4-acetoxy-3-[ ( R ) -I -( t-butyldimethylsilyloxy ) ] ethyl} azetidin-2-one-4-yl]-N,N-disubstitute-propionic amides(3e, 3i and 3k), were synthesized by Reformatsky reaction of (3S,4R)-4-acetoxy-3-[ (R)-1-(t-butyldimethylsilyloxy)ethyl] azetidin-2-one with 2-bromacetic acid ester, 2-brompropionic acid ester or 2-brompropionic amide. The structures were characterized by 1H NMR and 13C NMR. 3a - 3e and 3i were new compounds.
出处 《合成化学》 CAS CSCD 北大核心 2012年第3期352-355,共4页 Chinese Journal of Synthetic Chemistry
关键词 Reformatsky反应 氮杂环丁酮 1-β-碳氢霉烯类抗生素 药物中间体 合成 Reformatsky reaction azetidinone 1 -β-methy earbapenem antibiotic drug intermediate synthesis
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参考文献4

  • 1Andrew H. Berks Wyeth-ayerst research pearl river, preparations of two pivotal intermediates for the syn- thesis of 1-fl-methyl carbapenem antibiotics [ J ]. Tetra- hedron,1996,52(2) :331 -375.
  • 2Karel M J Brands, Ronald B Jobson. Efficient one-pot synthesis of the 2 -4-yhhio- comaining side chain of the new broad-spectrum car- bapenem antibiotic ertapenem[ J ]. J Org Chem,2002, 67(14) :4771 -4776.
  • 3Kazuhiko Kondo, Masahiko Seki, Tooru Kuroda. 2- Substituted 2, 3-dihydro-4H-1,3-benzoxazin-4-ones : Novel auxiliaries for stereoselective synthesis of 1-B- methylcarbapenems [ J ]. J Org Chem, 1997,62 ( 9 ) : 2877 - 2884.
  • 4Ayhan S Demir, Cihangir Tanyeli, Ali S Mahasneh, et a/. A novel reformatsky-like reaction of trichloroni- tromethane with aldehydes in the presence of tin ( II ) chloride [ J ]. Synthesis, 1994, (2) : 155 - 157.

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