在这里,我们描述了茚并[1,2- b ]吲哚衍生物的合成及其性质,它们是一类新型的人类蛋白激酶CK2的有效抑制剂。使用方便和直接的合成方案获得了一组19种化合物。测试了化合物对在大肠杆菌中重组表达的人蛋白激酶CK2的抑制作用。鉴定出IC 50在微摩尔和亚微摩尔范围内的新抑制剂。化合物4b(5-异丙基-7,8-二氢茚并[1,2- b ]吲哚-9,10(5 H,6 H)-二酮)抑制人CK2的IC 50浓度为0.11μM,并且没有显着抑制22种其他人类蛋白激酶,表明对CK2具有选择性。显示了化合物4b对ATP的竞争抑制作用,确定的K i为0.06μM。我们的发现表明,茚并[1,2- b ]吲哚是进一步开发和优化人类蛋白激酶CK2抑制剂的有希望的起点。
Domino reactions of cyclic enaminones leading to selective synthesis of pentacyclic indoles and its functionalization
作者:Wei Fan、Yan-Rong Li、Qun Li、Bo Jiang、Guigen Li
DOI:10.1016/j.tet.2016.06.058
日期:2016.8
established, providing selective protocol to pentacyclic indoles with different substituted patterns (up to 50 examples). Both substitutions on the cyclic enaminone ring and reaction temperatures showed obvious impact on the reaction pathways. For instance, selective allylic hydroxylation and allylic esterification of in situ generated indoles depend on reaction temperatures. With special substituents
Cross-dehydrogenative regioselective Csp<sup>3</sup>–Csp<sup>2</sup>coupling of enamino-ketones followed by rearrangement: an amazing formation route to acridine-1,8-dione derivatives
作者:Rajib Sarkar、Chhanda Mukhopadhyay
DOI:10.1039/c5ob02655e
日期:——
A new general method for the synthesis of acridine-1,8-diones through CDC coupling of enamino-ketones followed by rearrangement has been developed. This is a Cu(I) catalyzed procedure, based on the crossdehydrogenativecoupling of the Csp3–H bond with the Csp2–H bond of enamino-ketones followed by rearrangement to acridine-1,8-diones in the presence of PTSA under an aerobic atmosphere. The synthetic
Cu catalyzed cross-dehydrogenative coupling reaction for the synthesis of 3-hydroxy-2-pyrrolidinones
作者:Rajib Sarkar、Chhanda Mukhopadhyay
DOI:10.1016/j.tetlet.2018.06.061
日期:2018.8
regioselective CC coupling has been developed. This is a Cu (II) catalyzed cross dehydrogenative coupling (CDC) involving enamino-ketones of benzyl amines and di-alkyl acetylenedicarboxylate, followed by cyclization by primary amines. TBHP (tert-butyl hydroperoxide) has been used as the oxidant to promote the coupling protocol. This synthetic route principally demonstrates the scope of CDC reaction and also
Fast, Efficient, Mild, and Metal-Free Synthesis of Pyrroles by Domino Reactions in Water
作者:Magnus Rueping、Alejandro Parra
DOI:10.1021/ol102247n
日期:2010.11.19
(E)-β-Bromonitrostyrenes react with enaminones in water to afford pyrroles in excellent yields. The dominoreaction constitutes a new, mild, and environmentally benign process for the fast and efficient synthesis of diverse pyrroles.
Efficient synthesis of tetrahydroquinolinones by acetic acid-mediated formal [3+3] cycloaddition
作者:Quang Huy To、Yong Rok Lee、Sung Hong Kim
DOI:10.1007/s00706-012-0762-0
日期:2012.10
A simple and efficient method to synthesize a variety of tetrahydroquinolinones was successfully achieved by reacting various beta-enaminones with several alpha,beta-unsaturated aldehydes. This strategy can be viewed as a Bronsted acid-mediated formal [3+3] cycloaddition.