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2-etoxycarbonyl-5-methylthiolan-3-one | 56291-35-1

中文名称
——
中文别名
——
英文名称
2-etoxycarbonyl-5-methylthiolan-3-one
英文别名
5-methyl-3-oxo-tetrahydro-thiophene-2-carboxylic acid ethyl ester;5-Methyl-3-oxo-tetrahydro-thiophen-2-carbonsaeure-aethylester;ethyl 5-methyl-3-oxo-tetrahydrothiophene-2-carboxylate;ethyl 5-methyl-3-oxothiolane-2-carboxylate
2-etoxycarbonyl-5-methylthiolan-3-one化学式
CAS
56291-35-1
化学式
C8H12O3S
mdl
——
分子量
188.247
InChiKey
VPHHCVUUKHWFPW-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    134-137 °C(Press: 17 Torr)
  • 密度:
    1.185±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.3
  • 重原子数:
    12
  • 可旋转键数:
    3
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.75
  • 拓扑面积:
    68.7
  • 氢给体数:
    0
  • 氢受体数:
    4

SDS

SDS:80a82e7b7acd05536a98d8324634a452
查看

反应信息

  • 作为反应物:
    参考文献:
    名称:
    环状环砜作为HIV-1蛋白酶抑制剂的新型和高亲和力P2配体的发展。
    摘要:
    描述并设计了一系列新的蛋白酶抑制剂,这些蛋白酶抑制剂结合了针对HIV-1蛋白酶S2底物结合位点的构象受限的环状配体。我们最近报道了3-四氢呋喃基的氨基甲酸酯作为HIV-1蛋白酶抑制剂的P2配体。随后,我们发现3(S)-羟基环丁砜的氨基甲酸酯进一步增加了这些抑制剂的体外效能。此外,在任一杂环系统的3-羟基上引入小的2-烷基顺式进一步增强了酶亲和力。迄今为止,顺-2-异丙基提供了最佳的抑制性能。这导致发现了抑制剂43(IC50 3.5 nM,与目前的临床候选药物1(Ro 31-8959)具有相似的体外抗病毒效力(CIC95 50 +/- 14 nM),但由于排除了P3喹啉配体,分子量降低。另外,已经证明八氢吡啶并衍生物34是P1'十氢异喹啉衍生物的有效替代物。
    DOI:
    10.1021/jm00034a016
  • 作为产物:
    描述:
    ethyl 3-<(ethoxycarbonyl)methylthio>butyratesodium ethanolate 作用下, 以 乙醇甲苯 为溶剂, 反应 4.0h, 以4.5 g的产率得到2-etoxycarbonyl-5-methylthiolan-3-one
    参考文献:
    名称:
    环状环砜作为HIV-1蛋白酶抑制剂的新型和高亲和力P2配体的发展。
    摘要:
    描述并设计了一系列新的蛋白酶抑制剂,这些蛋白酶抑制剂结合了针对HIV-1蛋白酶S2底物结合位点的构象受限的环状配体。我们最近报道了3-四氢呋喃基的氨基甲酸酯作为HIV-1蛋白酶抑制剂的P2配体。随后,我们发现3(S)-羟基环丁砜的氨基甲酸酯进一步增加了这些抑制剂的体外效能。此外,在任一杂环系统的3-羟基上引入小的2-烷基顺式进一步增强了酶亲和力。迄今为止,顺-2-异丙基提供了最佳的抑制性能。这导致发现了抑制剂43(IC50 3.5 nM,与目前的临床候选药物1(Ro 31-8959)具有相似的体外抗病毒效力(CIC95 50 +/- 14 nM),但由于排除了P3喹啉配体,分子量降低。另外,已经证明八氢吡啶并衍生物34是P1'十氢异喹啉衍生物的有效替代物。
    DOI:
    10.1021/jm00034a016
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文献信息

  • Esters of thienobenzopyrans and thiopyranobenzopyrans
    申请人:Sharps Associates
    公开号:US03960871A1
    公开(公告)日:1976-06-01
    Novel thienobenzopyran and thiopyranobenzopyran esters represented by the formula ##SPC1## Wherein n is 0 to 3 and m is 0 to 3 and m + n = 2 or 3, R.sub.1 is lower alkyl, R.sub.2 is alkyl or cycloalkyl-lower alkyl, R.sub.4 is hydrogen or lower alkyl, R.sub.5 is hydrogen or lower alkyl, and R.sub.3 is ##EQU1## wherein Y is a straight or branched chain C.sub.1 to C.sub.8 alkylene, R.sub.6 is hydrogen or a lower alkyl, a is an integer from 1 to 4, b is an integer from 1 to 4, X is CH.sub.2, O, S or NR.sub.7 wherein R.sub.7 is hydrogen or lower alkyl, with the limitation that when X is O, S or NR.sub.7, a and b each must be 2; and the acid addition salts thereof.
    新颖的噻吲并苯并吡喃酯和噻吲并苯并吡喃酯的化学式为##SPC1## 其中n为0至3,m为0至3,且m + n = 2或3,R.sub.1为较低的烷基,R.sub.2为烷基或环烷基-较低的烷基,R.sub.4为氢或较低的烷基,R.sub.5为氢或较低的烷基,R.sub.3为##EQU1## 其中Y为直链或支链C.sub.1至C.sub.8的烷基,R.sub.6为氢或较低的烷基,a为1至4的整数,b为1至4的整数,X为CH.sub.2、O、S或NR.sub.7,其中R.sub.7为氢或较低的烷基,限制条件是当X为O、S或NR.sub.7时,a和b必须分别为2;及其酸盐。
  • Pharmaceutical compositions containing 1 or 2-mono and dialkyl
    申请人:Sharps Associates
    公开号:US03946111A1
    公开(公告)日:1976-03-23
    1,2-Dihydro-4H-thieno-[2,3-c][1]benzopyrans of the formulae ##SPC1## Wherein R is a lower alkyl group having 1 to 5 carbons, R.sub.1 is hydrogen or a lower alkyl group having 1 to 5 carbons, R.sub.2 is a lower alkyl group and R.sub.3 is an alkyl group having 1 to 20 carbon atoms, a phenyl-lower alkyl group or a cycloalkyl-lower alkyl group. The compounds have analgesic, antihypertensive, antidepressant, anticonvulsant, antianxiety, sedative-hypnotic and/or tranquilization activity.
    化学式为##SPC1##的1,2-二氢-4H-噻吩-[2,3-c][1]苯并吡喃类化合物,其中R是含有1至5个碳的低烷基,R.sub.1是氢或含有1至5个碳的低烷基,R.sub.2是低烷基,R.sub.3是含有1至20个碳的烷基、苯基-低烷基或环烷基-低烷基。该化合物具有镇痛、降压、抗抑郁、抗癫痫、抗焦虑、镇静催眠和/或镇定作用。
  • A study of the tautomerism of 2- and 4-ethoxycarbonylthiolan-3-ones implicating stereochemical effects of ring-substitution
    作者:F. Duus
    DOI:10.1016/s0040-4020(01)98968-9
    日期:1981.1
    an-3-ones are generally more enolized (40–74%) than the 2-ethoxycarbonylthiolan-3-ones (6–34%), and both series of compounds generally are less enolized than six-membered ring analogues. The extent of enolization of the title compounds is highly influenced by the nature and position of the ring-substitutents. Provable differencies in population of diastereomeric ketone forms related to the same, common
    已经合成了一系列的2-和4-乙氧基羰基噻喃-3-酮,并通过1 H NMR和IR光谱进行了研究。在四氯甲烷溶液中互变异构平衡的条件下,与2-乙氧基羰基噻喃-3-酮(6-34%)相比,4-乙氧基羰基噻喃-3-酮通常被更烯化(40–74%),并且这两个系列的化合物通常都更少。比六元环类似物烯醇化。标题化合物的烯醇化程度高度受环取代基的性质和位置影响。根据立体化学鉴定,讨论了与相同,常见的烯醇形式有关的非对映体酮形式的可证明的差异。
  • 13C and1H NMR study of structure and structural dynamics of tautomeric 2-ethoxycarbonylthiolane-3-thiones
    作者:Fritz Duus
    DOI:10.1002/mrc.1260270810
    日期:1989.8
    2-Ethoxycarbonylthiolane-3-thione (1) and its 5-methyl, 5-phenyl, 5,5-dimethyl and 4,5-dimethyl derivatives (2–5) were studied in solution by 13C and 1H NMR spectroscopy, using solvents of various polarity. Compounds 1–4 exist entirely in the tautomeric (Z)-enethiol form, i.e. they are in fact 2-ethoxycarbonyl-3-mercapto-4,5-dihydrothiophenes (1C-4C), apparently irrespective of their molecular surroundings. Compound 5 exists predominantly as the pair of enantiomeric (and hence NMR-indistinguishable) 2-ethoxycarbonyl-3-mercapto-4,5-dimethyl-4,5-dihydrothiophenes having a trans location of their ring-methyl groups, i.e. 5C(4R, 5R) and 5C(4S, 5S). The diastereomeric counterparts 5C(4R, 5S)/5C(4S, 5R) are observable as minor constituents, co-existing with the former in a double two-step equilibrium system, involving tautomeric 2-ethoxycarbonyl-3-mercapto-4,5-dimethyl-2,5-dihydrothiophenes as intermediates. The 13C chemical shifts of C-4 and C-5 of the unsubstituted and mono- and di-methyl-substituted 4,5-dihydrothiophenes (1C, 2C, 4C, 5C) are describable in terms of additive methyl-substituent shielding. The observed solvent-induced displacement of the mercapto proton chemical shift is interpreted in terms of the solvent's ability to effect pertubation of the intramolecular S—H ⃛O hydrogen bonding. Vicinal couplings between ring protons at C-4 and C-5 are influenced by substitution at C-4 and C-5, and also by the nature (polarity) of the solvent used. The measured coupling constants have been rationalized in terms of the conformational mobility of the 4,5-dihydrothiophene framework. A methyl group at C-5 has little significance for conformational preference. A phenyl group at C-5 preferentially occupies the near-equatorial position. The conformational equilibrium of the trans-4,5-dimethyl-4,5-dihydrothiophenes 5C(4R, 5R)/5C(4S, 5S) apparently depends on the solvent's polarity, a more polar solvent favouring the conformer having near-diaxial methyl groups.
    使用不同极性的溶剂,通过 13C 和 1H NMR 光谱研究了溶液中的 2-乙氧羰基巯基-3-硫酮(1)及其 5-甲基、5-苯基、5,5-二甲基和 4,5- 二甲基衍生物(2-5)。化合物 1-4 完全以同分异构体 (Z)-enethiol 形式存在,即它们实际上是 2-乙氧羰基-3-巯基-4,5-二氢噻吩(1C-4C),显然与它们的分子环境无关。化合物 5 主要是一对对映体(因此 NMR 无法区分),即 5C(4R,5R)和 5C(4S,5S)。非对映异构体 5C(4R,5S)/5C(4S,5R) 是可观察到的次要成分,与前者共存于一个双两步平衡体系中,中间产物包括同分异构体 2-乙氧羰基-3-巯基-4,5-二甲基-2,5-二氢噻吩。 未取代的以及一甲基和二甲基取代的 4,5- 二氢噻吩(1C、2C、4C、5C)的 C-4 和 C-5 的 13C 化学位移可以用甲基取代基的加成屏蔽来描述。 观察到的溶剂诱导的巯基质子化学位移位移是通过溶剂对分子内 S-H ⃛O 氢键的扰动来解释的。 C-4 和 C-5 处环状质子之间的毗连偶联受 C-4 和 C-5 处的取代以及所用溶剂的性质(极性)的影响。根据 4,5-二氢噻吩框架的构象流动性,测得的耦合常数是合理的。位于 C-5 的甲基对构象偏好的影响很小。位于 C-5 的苯基优先占据近赤道位置。反式-4,5-二甲基-4,5-二氢噻吩 5C(4R,5R)/5C(4S,5S)的构象平衡显然取决于溶剂的极性,极性较强的溶剂有利于具有近轴甲基的构象。
  • Fiesselmann; Pfeiffer, Chemische Berichte, 1954, vol. 87, p. 848,855
    作者:Fiesselmann、Pfeiffer
    DOI:——
    日期:——
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