Diastereoselective epoxidation of olefins by organo sulfonic peracids, II
作者:R. Kluge、M. Schulz、S. Liebsch
DOI:10.1016/0040-4020(95)01128-5
日期:1996.2
have investigated the behaviour of sulfonic peracids 2in situ generated towards olefins 7a,7b,9,11,14,16,18, allylic and homoallylic alcohols 20,22,24,26,28,30,33 and α,β-unsaturated ketones 35,37,39. Generally, the epoxidation proceeds in a peracid-like manner with greater diastereoselectivity than those by common oxidants. In particular, the epoxidation of Δ4 3-ketosteroids 39a-i led to 4α,5α-epoxides
Reaction of (−)-cis-verbenol epoxide with aromatic aldehydes over montmorillonite K10 clay
作者:I. V. Il’ina、D. V. Korchagina、K. P. Volcho、N. F. Salakhutdinov
DOI:10.1134/s1070428010070067
日期:2010.7
Reactions of (−)-cis-verbenol epoxide with a series of para-substituted benzaldehydes in the presence of montmorillonite K10 gave mixtures of products of intra- and intermolecular transformations, whose composition depended on the initial aldehyde.
Reactions of Allyl Alcohols of the Pinane Series and of Their Epoxides in the Presence of Montmorillonite Clay
作者:Irina V. Il'ina、Konstantin P. Volcho、Dina V. Korchagina、Vladimir A. Barkhash、Nariman F. Salakhutdinov
DOI:10.1002/hlca.200790042
日期:2007.2
of allyl alcohols of the pinane series and of their epoxides in the presence of montmorilloniteclay in intra- and intermolecular reactions was studied. Mutual transformations of (+)-trans-pinocarveol ((+)-2) and (−)-myrtenol ((−)-3a) were major reactions of these compounds on askanite–bentonite clay (Schemes 1 and 2). However, the two reactions gave different isomerization products, indicating that
A new series of chiral heterocyclic compounds with frameworks of different types were synthesized by reactions of verbenolepoxide with aromaticaldehydes in the presence of montmorilloniteclay. The analgesic activity of compounds with frameworks of 2-aryl-4,4,7-trimethyl-4a,5,8,8a-tetrahydro-4H-benzo[d][1,3]dioxin-8-ol type was studied in vivo. The majority of these compounds showed a significant
在蒙脱土的存在下,通过马来酸环氧化物与芳族醛的反应合成了一系列具有不同骨架的手性杂环化合物。研究了具有2-芳基-4,4,7-三甲基-4a,5,8,8a-四氢-4 H-苯并[ d ] [1,3]二恶英-8-ol型骨架的化合物的镇痛作用体内。这些化合物中的大多数在乙酸诱导的扭体试验中显示出显着的镇痛活性。两种化合物在热板试验中也显示出镇痛活性。在乙酸诱导的扭体试验中,对于芳基为4-氯苯基取代基的化合物,ED 50被确定为4.5 mg / kg。在两个试验中,具有4-硝基苯基取代基的化合物均显示出高镇痛活性。
Highly Potent Activity of (1<i>R</i>,2<i>R</i>,6<i>S</i>)-3-Methyl-6-(prop-1-en-2-yl)cyclohex-3-ene-1,2-diol in Animal Models of Parkinson’s Disease
作者:Oleg V. Ardashov、Alla V. Pavlova、Irina V. Il’ina、Ekaterina A. Morozova、Dina V. Korchagina、Elena V. Karpova、Konstantin P. Volcho、Tat’yana G. Tolstikova、Nariman F. Salakhutdinov
DOI:10.1021/jm2001579
日期:2011.6.9
(1R,2R,6S)-3-Methyl-6-(prop-1-en-2-yl)cyclohex-3-ene-1,2-diol 1 possesses potent antiparkinsonian activity in both MPTP and haloperidol animal models. The use of compound 1 resulted in nearly full recovery of the locomotor and exploratory activities and was as effective as the comparator agent (levodopa). All eight stereoisomers of compound 1 have been synthesized and the influence of the absolute configuration on the antiparkinsonian activity of compound 1 was shown.