Phenyl Compounds and Their Use in the Treatment of Type II Diabetes
申请人:Blaszczak Larry Chris
公开号:US20080221217A1
公开(公告)日:2008-09-11
The present invention is directed to compounds of formula (I) or a pharmaceutically acceptable salt thereof; wherein A is (xx); X is selected from CH, CF and N, R5 is selected from H, C
1
-C
6
alkyl, C
1
-C
6
fluoroalkyl, and —OR12, R9 is selected from H and —C(O)NR1OR11, R12 is selected from H, C
1
-C
6
alkyl and C
3
-C
6
cycloalkyl for use as inhibitors of the DPP-IV enzyme in the treatment or prevention of conditions including Type II diabetes.
Phenyl compounds and their use in the treatment of Type II diabetes
申请人:Eli Lilly and Company
公开号:US08076514B2
公开(公告)日:2011-12-13
The present invention is directed to compounds of formula (I) or a pharmaceutically acceptable salt thereof; wherein A is (xx); X is selected from CH, CF and N, R5 is selected from H, C1-C6 alkyl, C1-C6 fluoroalkyl, and —OR12, R9 is selected from H and —C(O)NR1OR1 1, R12 is selected from H, C1-C6 alkyl and C3-C6 cycloalkyl for use as inhibitors of the DPP-IV enzyme in the treatment or prevention of conditions including Type II diabetes.
<i>N</i>-Fluorobenzamide-Directed Formal [4+2] Cycloaddition Reaction with Maleic Anhydride: Access to Fluorescent Aminonaphthalic Anhydrides
作者:Tianyu Lu、Boyi Wang、Weixing Chang、Lingyan Liu、Jing Li
DOI:10.1021/acs.joc.2c01974
日期:2023.1.20
the aid of LiOH; finally, the amine underwent a [4+2] cycloaddition reaction with maleic anhydride to give the 1-amino-2,3-naphthalic anhydride product upon dehydrating aromatization. Notably, the corresponding naphthalic anhydride products could be transformed into a diverse array of naphthalimides. Both the naphthalic anhydrides and the naphthalimides exhibited similar fluorescent features.
我们开发了在 CuI 和 LiOH 存在下N-氟苯甲酰胺和马来酸酐的正式 [4+2] 环加成反应,并以良好的产率生产了一系列荧光 1-amino-2,3-naphthalic anhydrides。该反应通过多步过程进行,包括以氮为中心的自由基生成、1,5-氢原子转移和苄基自由基加成到酰胺羰基氧上生成N -(叔丁基)异苯并呋喃-1(3 H )-亚胺中间体异构化为N- (叔-丁基)异苯并呋喃-1-胺,在 LiOH 的帮助下通过去质子化和质子化;最后,胺与马来酸酐进行[4+2]环加成反应,脱水芳构化得到1-氨基-2,3-萘酸酐产物。值得注意的是,相应的萘二甲酸酐产品可以转化为多种萘酰亚胺。萘酸酐和萘酰亚胺都表现出相似的荧光特征。
Iron-Catalyzed, Directed Benzylic Borylation
作者:Hanbin Lee、Tiancheng He、Silas P. Cook
DOI:10.1021/acs.orglett.2c02864
日期:2023.1.13
Herein, we describe an iron-catalyzed benzylic C–H borylation reaction. The reaction targets primary and secondary C(sp3)–H bonds to deliver high-value boronic esters under mild conditions with short (7–8 min) reaction times. Functional groups are well tolerated, and complete site selectivity is observed in the presence of multiple benzylic C–H bonds.
Palladium-Catalyzed [3 + 2] Annulation of Aromatic Amides with Maleimides through Dual C–H Activation
作者:Gouranga Naskar、Masilamani Jeganmohan
DOI:10.1021/acs.orglett.3c00251
日期:——
A palladium-catalyzed [3 + 2] annulation of substituted aromatic amides with maleimides providing tricyclic heterocyclic molecules in good to moderate yields through weak carbonyl chelation is reported. The reaction proceeds via a dual C–H bond activation where the first C–Hactivation takes place selectively at the benzylic position followed by a second C–H bond activation at the meta position to