35577-92-5Relevant academic research and scientific papers
Inter- and intra-molecular C-H borylation for the formation of PAHs containing triarylborane and indole units
Escande,Crossley,Cid,Cade,Vitorica-Yrezabal,Ingleson
, p. 17160 - 17167 (2016)
Inter-/intra-molecular electrophilic C-H borylation of C4-substituted indoles enables the formation of fused polycyclic aromatic structures containing triarylborane and N-heterocyclic units. These compounds are B-(C)n-N isosteres of carbocyclic PAHs that do not contain B-N bonds and comparison of one pair of BN/CC isosteres reveals that different resonance structures dominate. These compounds are highly sensitive to protodeboronation, of both the chloroborane intermediates and the mesityl protected products, which results in low isolated yields of the latter. Protodeboronation can be utilised productively for a C-H directed, C-H electrophilic borylation to make a previously unknown pinacol boronate ester by selective protodeboronation of the chloroborane intermediate. Intermolecular and double intramolecular electrophilic C-H borylation of a C4-substituted indole leads to a more highly fused structure containing two boracycles which represents a B-(C)n-N analogue of the unknown carbon isostere indeno[1,7ab]perylene.
Discovery of the programmed cell death-1/programmed cell death-ligand 1 interaction inhibitors bearing an indoline scaffold
Qin, Mingze,Cao, Qi,Wu, Xia,Liu, Chunyang,Zheng, Shuaishuai,Xie, Hongbo,Tian, Ye,Xie, Jun,Zhao, Yanfang,Hou, Yunlei,Zhang, Xian,Xu, Boxuan,Zhang, Haotian,Wang, Xiaobo
, (2019/11/26)
Inhibiting the programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) pathway is an attractive strategy for tumor immunotherapy. Here, a novel series of indoline-containing compounds were developed, among which, A13 was identified as the most promising PD-1/PD-L1 pathway inhibitor. At the biochemical level, A13 demonstrated strong inhibition of the PD-1/PD-L1 interaction, with an IC50 of 132.8 nM. Notably, it exhibited outstanding immunoregulatory activity, and significantly elevated interferon-γ secretion in a Hep3B/OS-8/hPD-L1 and CD3 T cell co-culture model, without significant toxic effect. Therefore, A13 could be employed as a suitable lead compound for further design of non-peptide inhibitors targeting the PD-1/PD-L1 interaction. In addition, the preliminary structure-activity relationships of these new indoline compounds were investigated in this study, providing valuable information for future drug development.
Regioselective Formation of Substituted Indoles: Formal Synthesis of Lysergic Acid
Beaudry, Christopher M.,Points, Gary L.,Stout, Kenneth T.
supporting information, p. 16655 - 16658 (2020/12/01)
A Diels–Alder reaction-based strategy for the synthesis of indoles and related heterocycles is reported. An intramolecular cycloaddition of alkyne-tethered 3-aminopyrones gives 4-substituted indolines in good yield and with complete regioselectivity. Additional substitution is readily tolerated in the transformation, allowing synthesis of complex and non-canonical substitution patterns. Oxidative conditions give the corresponding indoles. The strategy also allows the synthesis of carbazoles. The method was showcased in a formal synthesis of lysergic acid.
New Generation of Selective Androgen Receptor Degraders: Our Initial Design, Synthesis, and Biological Evaluation of New Compounds with Enzalutamide-Resistant Prostate Cancer Activity
Hwang, Dong-Jin,He, Yali,Ponnusamy, Suriyan,Mohler, Michael L.,Thiyagarajan, Thirumagal,McEwan, Iain J.,Narayanan, Ramesh,Miller, Duane D.
, p. 491 - 511 (2019/01/11)
In our effort to find small-molecule treatments of advanced prostate cancers (PCs), a novel series of indolyl and indolinyl propanamides (series II and III) were discovered as selective androgen receptor degraders (SARDs). Initial studies of androgen receptor (AR) antagonist (1) and agonist (2) propanamides yielded a tertiary aniline (3) with novel SARD activity but poor metabolic stability. Cyclization to II and III produced submicromolar AR antagonism and protein degradation selective to AR and AR splice variant (AR SV). II and III maintained potency against enzalutamide-resistant (Enz-R) mutant ARs and PC cells and were efficacious in Enz-R xenografts, suggesting their potential to treat advanced PCs. Design, synthesis, and biological activity of novel SARDs that could potentially be used for the treatment of a wide spectrum of PCs including castration-resistant, Enz-R, and/or AR SV-dependent advanced PCs that are often untreatable with known hormone therapies are discussed.
Indoline compounds and preparing method and application thereof
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Paragraph 0077; 0078; 0079, (2019/06/12)
The invention belongs to the technical field of medicines, and discloses indoline compounds having a general formula I in which substitutes R1, R2, R3, R4 and R5 are defined in the specification and apreparing method and application thereof. The indoline
Indoline compounds used as immunomodulator, and preparation method thereof
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Paragraph 0149; 0151-0153, (2019/10/01)
The invention relates to the technical field of medicines, and relates to indoline compounds used as an immunomodulator, stereoisomers and pharmaceutically acceptable salts thereof, a preparation method thereof, and a medicinal composition containing the
Synthesis of heterobiaryls via Suzuki-Miyaura coupling reaction of potassium aryltrifluoroborates with heteroaryl halides in aqueous systems
Liu, Leifang,Zhao, Kai,Li, Wenbo,Liu, Mingli,Chen, Yuting,Dong, Yan
, (2019/02/25)
A variety of heterobiaryl compounds have been synthesized by the Suzuki-Miyaura coupling reactions of heteroaryl halides with potassium aryltrifluoroborates. Pd (OAc)2 was found to be highly efficient for the Suzuki-Miyaura coupling reactions of various heteroaryl halides with potassium aryltrifluoroborates in aqueous systems, delivering the corresponding heterobiaryl compounds in good to excellent yields.
Nonconventional difluoroalkylation of C(sp2)-H bonds through hydroarylation
Zhu, Chuan,Song, Shengjin,Zhou, Lu,Wang, Ding-Xing,Feng, Chao,Loh, Teck-Peng
supporting information, p. 9482 - 9485 (2017/09/01)
An unprecedented Rh-catalyzed C2-difluoroalkylation of indole derivatives with 2,2-difluorovinyl arenesulfonates has been reported. This reaction provides a rare instance of catalytic difluoroalkylation through hydroarylation of gem-difluoroalkenes. The sulfonate group works as a chelating ligand, thus stabilizing the rhodacycle intermediate, leading to the uncommon transformation.
CYANOPYRROLIDINES AS DUB INHIBITORS FOR THE TREATMENT OF CANCER
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Page/Page column 47, (2017/02/09)
The present invention relates to novel compounds and method for the manufacture of inhibitors of deubiquitylating enzymes (DUBs). In particular, the invention relates to the inhibition of ubiquitin C- terminal hydrolase L1 (UCHL1) and ubiquitin C-terminal hydrolase 30 or ubiquitin specific peptidase 30 (USP30). The invention further relates to the use of DUB inhibitors in the treatment of cancer and conditions involving mitochondrial dysfunction. Compounds of the invention include compounds having the formula (I) or a pharmaceutically acceptable salt thereof, wherein R1,R2,R3,R4,R5,R6,R7,R8 and R9 are as defined herein.
NOVEL COMPOUNDS
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Page/Page column 46; 55; 56, (2017/09/08)
The present invention relates to novel compounds of formula (I) and methods for the manufacture of inhibitors of deubiquitylating enzymes (DUBs). In particular, the invention relates to the inhibition of ubiquitin C-terminal hydrolase 30 or ubiquitin spec
