(+/-)-4-(2,2-dimethyldioxolan-4-yl)butanoic acid | 122804-23-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (+/-)-4-(2,2-dimethyldioxolan-4-yl)butanoic acid
• 英文别名: 4-(2,2-dimethyl-1,3-dioxolan-4-yl)butanoic acid
• CAS: 122804-23-3
• 化学式: C₉H₁₆O₄
• 分子量: 188.224
• InChiKey: VSMBNPYJOPORJT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (+/-)-4-(2,2-dimethyldioxolan-4-yl)butanoic acid 在 重铬酸吡啶 、 4 A molecular sieve 、 Amberlyst 15 ion exchange resin 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 6.0h， 生成 5-formyl-δ-valerolactone
  参考文献：
  名称：

  A general synthesis of 2- or 3-alkyl substituted 5-hydroxymethyl-δ-valerolactones, precursors of 5-formyl-δ-valerolactones, via lithiated N-allyl(bisdimethylamino)-N-methylphosphoramide carbanions

  摘要：

  A convenient strategy is reported for the synthesis of 2- or 3-alkylsubstituted 5-hydroxymethyl and 5-formyl-delta-valerolactones, which are very useful starting blocks for the total synthesis of leukotrienes and lactonic pheromones, It has been found that lithiated enephosphoramide ambident anions reacted exclusively in the gamma position with 2,3-O-isopropylidene glycerol triflate to give corresponding alkylated enephosphoramides by a C3-C3 backbone connection. Enephosphoramide group was further selectively hydrolyzed in the presence of isopropylidene function in mild acidic conditions and led to expected aldehydes in high yields. Oxidation of these aldehydes using silver oxide or potassium permanganate afforded corresponding acids. Further hydrolysis of the isopropylidene group led to unstable dihydroxyacids which directly lactonized. The latter were converted to 5-formyl-delta-valerolactones using PDC oxidant. (C) 1999 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(99)00269-7
• 作为产物：
  描述：

  (+/-)-4-(3-cyanopropyl)-2,2-dimethyldioxolane 在 phosphate buffer 作用下， 反应 72.0h， 以41%的产率得到(+/-)-4-(2,2-dimethyldioxolan-4-yl)butanoic acid
  参考文献：
  名称：

  固定化腈水解酶将腈选择性转化为酰胺和羧酸

  摘要：

  使用来自红球菌属的固定化腈水解酶。即使在中性条件下存在酸或碱敏感基团，也可以实现腈的温和选择性水解。该方法适用于各种底物，例如脂族，脂环族，杂环和碳水化合物类腈。

  DOI：

  10.1016/s0040-4039(00)92623-6

文献信息

• Selective transformation of nitriles into amides and carboxylic acids by an immobilized nitrilase
  作者：Norbert Klempier、Anna de Raadt、Kurt Faber、Herfried Griengl

  DOI：10.1016/s0040-4039(00)92623-6

  日期：1991.1

  Using an immobilized nitrilase from Rhodococcus sp. mild and selective hydrolysis of nitriles can be achieved even in the presence of acid or base sensitive groups under neutral conditions. This method is applicable to a broad range of substrates as exemplified by aliphatic, alicyclic, heterocyclic and carbohydrate type nitriles.

  使用来自红球菌属的固定化腈水解酶。即使在中性条件下存在酸或碱敏感基团，也可以实现腈的温和选择性水解。该方法适用于各种底物，例如脂族，脂环族，杂环和碳水化合物类腈。
• Mono or bicyclic DNA gyrase inhibitors
  申请人：F. HOFFMANN-LA ROCHE AG

  公开号：EP0675122A2

  公开（公告）日：1995-10-04

  The present invention relates to mono- or bicyclic compounds of the general formula wherein X1is -S- or -SO-; R1is hydrogen, halogen or lower alkyl, optionally substituted by halogen ; R2is hydrogen, hydroxy, amino, lower alkylamino, di-lower alkylamino, optionally substituted lower alkoxy or a group -OP; OPis an easily hydrolyzable group; R3is hydrogen, hydroxy, lower alkyl, halogen or a group -OP; R4is halogen, hydroxy or a group -OP; R5is hydrogen, cyano, optionally substituted esterified carboxy or optionally substituted amidated (thio)carboxy, optionally substituted alkyl, optionally substituted alkenyl or optionally substituted heterocyclyl; R6is -NR7-A, -N=B or optionally substituted heterocyclyl, in which R7 is hydrogen or lower alkyl, A is optionally substituted iminoyl, optionally substituted (thio)acyl, optionally substituted esterified carboxy, optionally substituted amidated (thio)carboxy or optionally substituted heterocyclyl and B is optionally substituted alkylidene; R0is cyano, optionally substituted esterified carboxy or optionally substituted heterocyclyl, or wherein R0 and R6taken together represent a group         -CO-O-Q-X2-N(R7)-, wherein R7is as above, and X2is (thio)carbonyl or heterocyclyl; Qis -CH(R8)- or -CH(R8)-W-; R8is hydrogen or optionally substituted lower alkyl, and Wis optionally substituted mono-, di-, tri-, tetra- or pentamethylene, provided that when W is monomethylene X2 is other than (thio)carbonyl, and pharmaceutically acceptable salts of the mono- or bicyclic compounds of formula I carrying an acidic and/or basic substituent. These compounds of formula I as well as their pharmaceutically acceptable salts inhibit DNA gyrase activity in bacteria and possess antibiotic, especially antibacterial activity against microorganisms and can be used in the control or prevention of infectious diseases.

  本发明涉及通式如下的单环或双环化合物 其中 X1是-S-或-SO-； R1是氢、卤素或低级烷基，任选被卤素取代； R2 是氢、羟基、氨基、低级烷基氨基、二低级烷基氨基、任选被取代的低级烷氧基或基团 -OP； OP 是易水解基团； R3 是氢、羟基、低级烷基、卤素或基团 -OP R4 是卤素、羟基或基团 -OP R5是氢、氰基、任选取代的酯化羧基或任选取代的酰胺化（硫代）羧基、任选取代的烷基、任选取代的烯基或任选取代的杂环基； R6是-NR7-A、-N=B或任选取代的杂环基，其中R7是氢或低级烷基，A是任选取代的亚氨基酰基、任选取代的（硫代）酰基、任选取代的酯化羧基、任选取代的酰胺化（硫代）羧基或任选取代的杂环基，B是任选取代的亚烷基； R0 是氰基、任选取代的酯化羧基或任选取代的杂环基，或其中 R0 和 R6 合在一起代表一个基团 -CO-O-Q-X2-N(R7)-、 其中 R7 如上，以及 X2 是（硫代）羰基或杂环基； Q是-CH(R8)-或-CH(R8)-W-； R8 是氢或任选取代的低级烷基，以及 Wis 任选取代的一亚甲基、二亚甲基、三亚甲基、四亚甲基或五亚甲基，但当 W 为一亚甲基时，X2 不是（硫代）羰基、 和 带有酸性和/或碱性取代基的式 I 单环或双环化合物的药学上可接受的盐。 这些式 I 化合物及其药学上可接受的盐类可抑制细菌中 DNA 回旋酶的活性，并具有抗生素活性，特别是对微生物的抗菌活性，可用于控制或预防传染性疾病。
• US5589473A
  申请人：——

  公开号：US5589473A

  公开（公告）日：1996-12-31
• US5594135A
  申请人：——

  公开号：US5594135A

  公开（公告）日：1997-01-14
• US5665746A
  申请人：——

  公开号：US5665746A

  公开（公告）日：1997-09-09