(3S,4S)-1-(allyloxycarbonylmethyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-carboxyethyl]-2-azetidinone | 153976-18-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酰胺类
• 英文名称: (3S,4S)-1-(allyloxycarbonylmethyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-carboxyethyl]-2-azetidinone
• 英文别名: (3S,4S)-3-[(1R)-1-t-butyldimethylsilyloxyethyl]-4-[(1R)-1-carboxyethyl]-1-(allyloxycarbonylmethyl)-2-azetidinone；(2R)-2-[(2S,3S)-3-[(1R)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxo-1-(2-oxo-2-prop-2-enoxyethyl)azetidin-2-yl]propanoic acid
• CAS: 153976-18-2
• 化学式: C₁₉H₃₃NO₆Si
• 分子量: 399.56
• InChiKey: PNLJTJONYOLESY-RRCSTGOVSA-N

物化性质

• 沸点：
  502.2±30.0 °C(Predicted)
• 密度：
  1.086±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.67
• 重原子数：
  27
• 可旋转键数：
  11
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.74
• 拓扑面积：
  93.1
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (3S,4S)-1-(allyloxycarbonylmethyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-carboxyethyl]-2-azetidinone 在 四氯化钛 4-二甲氨基吡啶 、 三正丁胺 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 、 苯 为溶剂， 反应 13.5h， 生成 allyl (4R,5S,6S)-3-benzylthio-6-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
  参考文献：
  名称：

  实用的新型脱水型Ti-Dieckmann缩合法合成1β-甲基卡巴南

  摘要：

  利用新型脱水类型的Ti-Dieckmann（分子内Ti-Claisen）缩合反应，可以高效，实用且立体控制地合成1β-甲基卡巴姆。与传统的碱性狄克曼缩合反应相比，该环化反应具有将硫醇部分直接掺入目标1β-甲基卡巴南的优点。另一个优点是使用对环境无害的（低毒性和安全的）试剂（TiCl 4和Et 3 N或Bu 3 N）。

  DOI：

  10.1002/adsc.200303065
• 作为产物：
  描述：

  (3S,4R)-3-[(1R)-1-[(tert-butyldimethylsilyl)oxy]ethyl]-4-[(1R)-1-[[(tert-butyldimethylsilyl)oxy]carbonyl]ethyl]azetidin-2-one 在 sodium hexamethyldisilazane 、 potassium carbonate 作用下， 以 四氢呋喃 为溶剂， 反应 1.25h， 生成 (3S,4S)-1-(allyloxycarbonylmethyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-carboxyethyl]-2-azetidinone
  参考文献：
  名称：

  Efficient synthesis of 1β-methylcarbapenems based on the counter-attack strategy

  摘要：

  A seven-step efficient synthesis of 1 beta-methylcarbapenems 1 from the acetoxyazetidinone 6 is described. The Reformatsky reaction of 3-(2-bromopropionyl)-1,3-benzoxazinone 7 with compound 6 gave an adduct 8 in 96% yield with high beta-selectivity (beta:alpha = 92:8). Compound 8 was transformed in three steps into the side-chain thiol esters 12a-e in good yields. The chlorotrimethylsilane-mediated Dieckmann-type cyclisation of thioesters 12b-e followed by counter-attack of the liberated thiolate anion 18 yielded the C-2 alkylthio- or arylthio-substituted 1 beta-methylcarbapenems 19b-e in a one-pot procedure. The synthesis of 1 beta-methylcarbapenems 1 was demonstrated by a simple cleavage of the silyl ether and allyl ester of compound 19b to afford target compound 1b in high yield.

  DOI：

  10.1039/p19960002851

文献信息

• Practical Synthesis of (<i>R</i>)-4-Mercaptopyrrolidine-2-thione from <scp>l</scp>-Aspartic Acid. Preparation of a Novel Orally Active 1-β-Methylcarbapenem, TA-949
  作者：Masahiko Seki、Takeshi Yamanaka、Kazuhiko Kondo

  DOI：10.1021/jo991461+

  日期：2000.1.1

  High-yield amination and cyclization of the chloride 15 to the pyrrolidin-2-one 16 was accomplished by a simple treatment with ammonia. Thiation of 16 and the Birch reduction of the resultant thiolactam 18 provided the C-2 side chain 2 in high yield with the asymmetric center retained as such. The side chain 2 was installed into the 1-beta-methylcarbapenem skeleton either by coupling with the vinyl phosphate

  描述了一种新型的口服活性1-β-甲基卡巴培南TA-949（1）的简便经济合成方法。关键过程涉及从L-天冬氨酸有效合成C-2侧链（R）-4-巯基吡咯烷-2-硫酮2和1-β-甲基卡巴培南骨架的构建。通过将L-天冬氨酸β-甲基酯盐酸盐12的氨基脱氨基溴化，然后用苯甲硫醇钾进行完全S（N）2型取代，形成具有R-构型的2巯基。通过用氨进行简单处理，可以将氯化物15高产率地胺化和环化为吡咯烷酮-2-酮16。16的硫杂化和所得硫代内酰胺18的桦木还原提供了高收率的C-2侧链2，并保留了不对称中心。
• Process for preparing carbapenem derivatives
  申请人：Tanabe Seiyaku Co., Ltd.

  公开号：US05359059A1

  公开（公告）日：1994-10-25

  Process for preparing carbapenem derivative of the formula [I], which comprises subjecting azetidinone compound of the formula [II] to intramolecular cyclization reaction together with elimination reaction of the group of --SR.sup.4, followed by re-adding said group of --SR.sup.4 to the 2-position of the carbapenem skeleton of the intramolecularly cyclized compound, which is industrially useful as process for preparing carbapenem antimicrobials or synthetic intermediate therefor. ##STR1## wherein R.sup.1 is protected or unprotected hydroxy-substituted lower alkyl group, R.sup.2 is hydrogen atom or ester residue, R.sup.3 is hydrogen atom or lower alkyl group, and the group of --SR.sup.4 is group which can be used as substituent at 2-position of the carbapenem antimicrobials.

  制备公式[I]的碳青霉烯衍生物的过程包括将公式[II]的氮杂四元环化合物进行分子内环化反应和--SR.sup.4基团的消除反应，然后将--SR.sup.4基团重新加到分子内环化化合物的碳青霉烯骨架的2位上，该过程在工业上用于制备碳青霉烯抗微生物药物或其合成中间体。其中R.sup.1是保护或未保护的羟基取代的低碳基基团，R.sup.2是氢原子或酯基残基，R.sup.3是氢原子或低碳基基团，--SR.sup.4基团是可用作碳青霉烯抗微生物药物2位取代基团的基团。