3-ethoxycyclobut-3-ene-1,2-dione | 61699-52-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-ethoxycyclobut-3-ene-1,2-dione
• 英文别名: 3-Ethoxy-cyclobut-3-en-1,2-dion, (Moniliformin-ethylether)；3-ethoxy-3-cyclobutene-1,2-dione；diethyl squarate；1-ethoxycyclobutene-3,4-dione
• CAS: 61699-52-3
• 化学式: C₆H₆O₃
• 分子量: 126.112
• InChiKey: DQJCZYOSORVVFB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  9
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-ethoxycyclobut-3-ene-1,2-dione 、 3-aminopropyl α-D-mannopyranosyl-(1->3)-[α-D-mannopyranosyl(1->6)]-α-D-mannopyranosyl-(1->2)-α-D-mannopyranosyl-(1->2)-α-D-mannopyranoside acetic acid 在 三乙胺 作用下， 以 乙醇 、 水 为溶剂， 反应 24.0h， 以89%的产率得到3-(3,4-dioxo-2-ethoxycyclobut-1-enylamino)propyl α-D-mannopyranosyl-(1->3)-[α-D-mannopyranosyl-(1->6)]-α-D-mannopyranosyl-(1->2)-α-D-mannopyranosyl-(1->2)-α-D-mannopyranoside
  参考文献：
  名称：

  Synthesis of 3,6-branched oligomannoside fragments of the mannan from Candida albicans cell wall corresponding to the antigenic factor 4

  摘要：

  3-Aminopropyl glycosides of 3,6-branched penta- and hexamannoside fragments of the cell wall mannan from Candida albicans, corresponding to the antigenic factor 4, have been synthesized. Subsequent coupling of both oligosaccharides with BSA using the squarate procedure provided corresponding neoglycoconjugates. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2009.11.012
• 作为产物：
  描述：

  2,2,3,3-四乙氧基环丁烷-1-酮 在 盐酸 作用下， 以 四氢呋喃 为溶剂， 生成 3-ethoxycyclobut-3-ene-1,2-dione
  参考文献：
  名称：

  合成冯·莫尼利福汀，阿霉素，霉菌毒素和环丁酮-Struktur †

  摘要：

  具有环丁二酮结构的霉菌毒素莫尼西丁的合成

  DOI：

  10.1002/hlca.19780610526

文献信息

• [EN] PYRIDINYL DERIVATIVES AS INHIBITORS OF ENZYME NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE<br/>[FR] DÉRIVÉS DE PYRIDINYLE UTILISÉS EN TANT QU'INHIBITEURS DE L'ENZYME NICOTINAMIDE PHOSPHORIBOSYLTRANSFÉRASE
  申请人：TOPOTARGET AS

  公开号：WO2010142735A1

  公开（公告）日：2010-12-16

  The present application discloses a compound of the formula (I) wherein Q is optionally substituted pyridyl; p is 0-6; Y is formulae (i), (ii) and (iii) where X is =O, =S and =N-CN, r is 1-12, R is -Z-A, Z is a single bond, -S(=O)2-, >P=O, >C=O, -C(=O)NH-, and -C(=S)NH-; and A is hydrogen, C1-12-alkyl, C3-12-cycloalkyl, - [CH2CH2O]1-10-(C1-6-alkyl), C1-12-alkenyl, aryl, heterocyclyl, and heteroaryl; B is a single bond, -NRN-, -S(=O)2- and -O-; wherein RN is selected from hydrogen, C1-12-alkyl, C3-12-cycloalkyl, -[CH2CH2O]1-10-(C1-6-alkyl), C1-12-alkenyl, aryl, heterocyclyl, and heteroaryl; s is 0-6; and Cy is aryl, cycloalkyl, heterocyclyl, and heteroaryl. The compounds are usefuld for use as a medicament for the treatment of a disease or a condition caused by an elevated level of nicotinamide phosphoribosyltransferase (NAMPRT).

  本申请公开了一种化合物，其化学式为（I），其中Q是可选择取代的吡啶基；p为0-6；Y是式（i）、（ii）和（iii），其中X为=O、=S和=N-CN，r为1-12，R为-Z-A，Z为单键，-S(=O)2-，>P=O，>C=O，-C(=O)NH-和-C(=S)NH-；A为氢、C1-12-烷基、C3-12-环烷基、-[CH2CH2O]1-10-(C1-6-烷基)、C1-12-烯基、芳基、杂环烷基和杂芳基；B为单键，-NRN-，-S(=O)2-和-O-；其中RN从氢、C1-12-烷基、C3-12-环烷基、-[CH2CH2O]1-10-(C1-6-烷基)、C1-12-烯基、芳基、杂环烷基和杂芳基中选择；s为0-6；Cy为芳基、环烷基、杂环烷基和杂芳基。这些化合物可用作治疗由烟酰胺磷酸核糖转移酶（NAMPRT）水平升高引起的疾病或症状的药物。
• [EN] SQUARIC ACID DERIVATIVES AS INHIBITORS OF THE NICOTINAMIDE<br/>[FR] DÉRIVÉS DE L'ACIDE SQUARIQUE UTILISÉS COMME INHIBITEURS DU NICOTINAMIDE
  申请人：TOPOTARGET AS

  公开号：WO2009156421A1

  公开（公告）日：2009-12-30

  The present application discloses novel squaric acid derivatives of the formula A: from -C(=O)-, -S(=O)2-, -C(=S)- and -P(=O)(R5)-; B: -, -O-, -NR6- and -C(=O)-NR6-; D : -, -O-, -CR7R8- and -NR9; m=0-12; n = 0-12; m+n = 1-20; p=0-2; R1 : heteroaryl, aryl; R2 : H, C1-12-alkyl, C3-12-cycloalkyl, -[CH2CH2O]1-10-(C1-6-alkyl),C1-12-alkenyl, aryl, heterocyclyl, heteroaryl; R3 : C1-12-alkyl, C3-12-cycloalkyl, -[CH2CH2O]1-10-(C1-6-alkyl), C1-12-alkenyl, aryl, heterocyclyl, heteroaryl; or R2 and R3 : N-containing heterocyclic/heteroaromatic ring; R4 and R4* : H, C1-12-alkyl, C1-12-alkenyl; and pharmaceutically acceptable salts and prodrugs thereof, and their use in the treatment of diseases/conditions caused by an elevated level of NAMPRT (inflammatory and tissue repair disorders, particularly rheumatoid arthritis, inflammatory bowel disease, asthma and CPOD, osteoarthritis, osteoporosis and fibrotic diseases; dermatosis; autoimmune diseases including systemic lupus erythematosis, multiple sclerosis, psoriatic arthritis, ankylosing spondylitis, tissue and organ rejection, Alzheimer's disease, stroke, atherosclerosis, restenosis, diabetes, glomerulonephritis, cancer, cachexia, inflammation associated with infection and viral infections, adult respiratory distress syndrome, ataxia telengiectasia).

  本申请公开了公式A的新颖方酸衍生物：来自-C(=O)-，-S(=O)2-，-C(=S)-和-P(=O)(R5)-；B：-，-O-，-NR6-和-C(=O)-NR6-；D：-，-O-，-CR7R8-和-NR9；m=0-12；n=0-12；m+n=1-20；p=0-2；R1：杂环烷基，芳基；R2：H，C1-12-烷基，C3-12-环烷基，-[CH2CH2O]1-10-(C1-6-烷基)，C1-12-烯基，芳基，杂环烷基，杂环芳基；R3：C1-12-烷基，C3-12-环烷基，-[CH2CH2O]1-10-(C1-6-烷基)，C1-12-烯基，芳基，杂环烷基，杂环芳基；或R2和R3：含氮杂环/杂芳环；R4和R4*：H，C1-12-烷基，C1-12-烯基；以及其药学上可接受的盐和前药，以及它们在治疗由NAMPRT水平升高引起的疾病/症状中的用途（炎症和组织修复紊乱，特别是类风湿关节炎，炎症性肠病，哮喘和CPOD，骨关节炎，骨质疏松症和纤维化疾病；皮肤病；自身免疫疾病，包括系统性红斑狼疮，多发性硬化，银屑病性关节炎，强直性脊柱炎，组织和器官排斥，阿尔茨海默病，中风，动脉粥样硬化，再狭窄，糖尿病，肾小球肾炎，癌症，虚弱，与感染和病毒感染相关的炎症，成人呼吸窘迫综合征，遗传性毛细血管扩张症）。
• Triethyloxonium Tetrafluoroborate Mediated Addition Reaction of Unsaturated Organosilanes to Squaric Acid Esters
  作者：Yoshihiko Yamamoto、Keiko Nunokawa、Kohichi Okamoto、Masatomi Ohno、Shoji Eguchi

  DOI：10.1055/s-1995-3944

  日期：1995.5

  Squaric acid esters were treated with triethyloxonium tetrafluoroborate at room temperature to produce ethoxycarbenium ion species, and subsequent addition of trimethylsilyl cyanide (TMSCN) to this intermediate at 0°C afforded O-ethyl cyanohydrins in fair to good yields. In a similar manner, the ester reacted effectively with silyl enol ether and silyl ketene acetal to give the corresponding O-ethylated addition products. On the other hand the reaction with allylsilanes preferred the formation of 1:2 adducts.

  室温下，将斯夸酸酯与三乙基氧鎓四氟硼酸盐反应，生成乙氧基碳鎓离子，随后在0°C下向该中间体中加入三甲基硅基氰（TMSCN），以较好至良好的产率得到O-乙基氰醇。类似地，酯与硅基烯醇醚和硅基烯酮缩醛有效反应，生成相应的O-乙基加成产物。另一方面，该反应与烯丙基硅烷反应时，倾向于生成1:2加成物。
• [EN] PYRIDINYL DERIVATIVES COMPRISING A CYANOGUANIDINE OR SQUARIC ACID MOIETY<br/>[FR] DÉRIVÉS DE PYRIDINYLE COMPRENANT UN GROUPEMENT CYANOGUANIDINE OU ACIDE SQUARIQUE
  申请人：TOPOTARGET AS

  公开号：WO2011121055A1

  公开（公告）日：2011-10-06

  The present application discloses compounds of the formula (I) wherein X = opt.subst. pyrid-3-yl or pyrid-4-yl; Q = opt.subst. Ci-6 alkylene or a single bond; Y is formula (i) wherein D is = N-CN, or formula (ii) B = is opt.subst. C1-6 alkylene; A = (formula) Z = -J-V, wherein J = -C(=0)-, -C(=O)-O, -S(=O)2-, -P(=O)(OR4)-, -C(=O)-NR4- and -C(=S)-NR4-, and V = opt.subst. C1-12-alkyl, opt.subst. C3-12-cycloalkyl, -[CH2CH2O]1-10-( opt.subst. C1-6-alkyl), opt.subst. C1-12- alkenyl, opt.subst. aryl, opt.subst. heterocyclyl, or opt.subst. heteroaryl; q = 0-2, and r = 0- 2; and pharmaceutically acceptable salts thereof, and prodrugs thereof. The application also discloses the compound for use as a medicament for the treatment of a disease or a condition caused by an elevated level of nicotinamide phosphoribosyltransferase (NAMPRT), e.g. inflammatory and tissue repair disorders; dermatosis; autoimmune diseases, Alzheimer's disease, stroke, athersclerosis, restenosis, diabetes, glomerulonephritis, cancer, cachexia, inflammation associated with infection and certain viral infections, including Acquired Immune Deficiency Syndrome (AIDS), adult respiratory distress syndrome, ataxia telengiectasia.

  本申请公开了以下式(I)的化合物，其中X = opt.subst.吡啶-3-基或吡啶-4-基; Q = opt.subst. Ci-6烷基或单键; Y是式(i)，其中D = N-CN，或式(ii)中的B = opt.subst. C1-6烷基; A = (式) Z = -J-V，其中J = -C(=0)-，-C(=O)-O，-S(=O)2-，-P(=O)(OR4)-，-C(=O)-NR4-和-C(=S)-NR4-，V = opt.subst. C1-12-烷基，opt.subst. C3-12-环烷基，-[CH2CH2O]1-10-(opt.subst. C1-6-烷基)，opt.subst. C1-12-烯基，opt.subst. 芳基，opt.subst. 杂环烷基，或opt.subst. 杂环芳基; q = 0-2，r = 0-2; 及其药学上可接受的盐和前药。该申请还公开了该化合物用作治疗由烟酰胺磷酸核糖转移酶（NAMPRT）水平升高引起的疾病或病症的药物，例如炎症和组织修复紊乱; 皮肤病; 自身免疫疾病，阿尔茨海默病，中风，动脉粥样硬化，再狭窄，糖尿病，肾小球肾炎，癌症，虚弱症，与感染和某些病毒感染相关的炎症，包括获得性免疫缺陷综合症（AIDS），成人呼吸窘迫综合征，遗传性毛细血管扩张。
• Compositions, methods and new compounds for influencing plant growth
  申请人：Ciba-Geigy Corporation

  公开号：US04092146A1

  公开（公告）日：1978-05-30

  Certain esters of 1-hydroxy-cyclobutene-3,4-dione and mono- and diesters of square acid have been found to be useful in the regulation of plant growth, especially as post-emergent herbicides, as plant growth inhibitors and desiccants. New esters of this type and their manufacture are also described.

  1-羟基环丁烯-3,4-二酮的某些酯类和方酸的单酯和二酯已被发现在植物生长调节中有用，特别是作为后出苗除草剂，植物生长抑制剂和脱水剂。本文还描述了这种类型的新酯类及其制造方法。