Facile synthesis of libraries of functionalized cyclopropanes and oxiranes using ionic liquids – A new approach to the classical Corey-Chaykovsky reaction
作者:Shruti S. Malunavar、Suraj M. Sutar、Pavankumar Prabhala、Hemantkumar M. Savanur、Rajesh G. Kalkhambkar、Gopalakrishnan Aridoss、Kenneth K. Laali
DOI:10.1016/j.tetlet.2021.153339
日期:2021.9
[PAIM][NTf]/BMIM-ILs as a base/solvent in the Corey-Chaykovsky reaction is demonstrated by the facile synthesis of libraries of functionalized cyclopropanes from enones and oxiranes from aldehydes and ketones, at room temperature in respectable isolated yields. To demonstrate their application, the synthesized epoxides were employed as substrates for the synthesis of a library of 2,3-disubstituted quinolines, using
Catalytic Asymmetric Cyclopropanation of Enones with Dimethyloxosulfonium Methylide Promoted by a La−Li<sub>3</sub>−(Biphenyldiolate)<sub>3</sub> + NaI Complex
Catalytic asymmetric cyclopropanation of enones with dimethyloxosulfoniummethylide using a La−Li3−(biphenyldiolate)3 + NaI complex is described. The present method is complementary to the previously reported catalytic enantioselective methods in terms of ylides used, and trans products were exclusively obtained in good yield (96−73%) and high enantioselectivity (99−84% ee). Use of biphenyldiol 1b-H2
描述了使用 La−Li3−(biphenyldiolate)3 + NaI 复合物对烯酮与二甲基氧锍甲基化物的催化不对称环丙烷化反应。本方法在使用的叶立德方面是对先前报道的催化对映选择性方法的补充,并且反式产物仅以良好的产率 (96-73%) 和高对映选择性 (99-84% ee) 获得。联苯二醇 1b-H2 和 NaI 添加剂的使用对于实现高对映选择性至关重要。
SUBSTITUTED 2-AMINO-FUSED HETEROCYCLIC COMPOUNDS
申请人:Huang Liming
公开号:US20100056506A1
公开(公告)日:2010-03-04
The present invention relates to compounds of formula (I), or a pharmaceutically acceptable salt or solvate thereof, wherein: R
1
, R
2
, Z
1
, t, and ring A are as defined in the specification. The invention also relates to pharmaceutical compositions comprising the compounds of formula (I) and methods of treating a condition that is mediated by the modulation of JNK, such as diabetes, the method comprising administering to a mammal an effective amount of a compound of formula (I).
Kulinkovich, O. G.; Tishchenko, I. G.; Sviridov, S. V., Journal of Organic Chemistry USSR (English Translation), 1986, vol. 22, # 9, p. 1682 - 1686
作者:Kulinkovich, O. G.、Tishchenko, I. G.、Sviridov, S. V.
DOI:——
日期:——
PEPTIDOMIMETIC PROTEASOME INHIBITORS
申请人:CORNELL UNIVERSITY
公开号:US20220056073A1
公开(公告)日:2022-02-24
The compounds of the present invention are represented by the following compounds having Formula (I) and Formula (I′):
where the substituents R, R
1
, R
3
, R
4
, R, W, X, Y, Z, k, and m are as defined herein and
where the substituents R, R
1
, R
2
, R
3
, R
4
, X, Y, Z, and m are as defined herein. These compounds are used in the treatment of bacterial infections, parasite infections, fungal infections, cancer, immunologic disorders, autoimmune disorders, neurodegenerative diseases and disorders, inflammatory disorders, or muscular dystrophy or for providing immunosuppression for transplanted organs or tissues.