The present invention provides a compound promoting osteogenesis. The present invention provides a compound having the following general formula (I)
wherein R1 is H or alkyl,
R2 is RaS-, RaO-, RaNH-, Ra(Rb)N- or cyclic amino, and
Ra and Rb are alkyl which may be substituted, cycloalkyl which may be substituted, or the like, or a pharmacologically acceptable salt thereof.
Design, Synthesis, and Bioevaluation of 2-Aminopteridin-7(8<i>H</i>)-one Derivatives as Novel Potent Adenosine A<sub>2A</sub> Receptor Antagonists for Cancer Immunotherapy
作者:Fazhi Yu、Chenyu Zhu、Shuyin Ze、Haojie Wang、Xinyu Yang、Mingyao Liu、Qiong Xie、Weiqiang Lu、Yonghui Wang
DOI:10.1021/acs.jmedchem.1c02199
日期:2022.3.10
In recent years, the adenosineA2Areceptor (A2AR) has shown exciting progress in the development of immunotherapies for the treatment of cancer. Herein, a 2-amino-7,9-dihydro-8H-purin-8-one compound (1) was identified as an A2AR antagonist hit through in-house library screening. Extensive structure–activity relationship (SAR) studies led to the discovery of 2-aminopteridin-7(8H)-one derivatives, which
近年来,腺苷A 2A受体(A 2A R) 在用于治疗癌症的免疫疗法的开发中显示出令人兴奋的进展。在此,一种2-氨基-7,9-二氢-8H-嘌呤-8-酮化合物( 1 )通过内部文库筛选被鉴定为A 2AR拮抗剂。广泛的构效关系 (SAR) 研究导致发现了 2-氨基蝶啶-7(8 H )-one 衍生物,该衍生物在 cAMP 测定中显示出对 A 2A R 的高效力。化合物57在 5'- N处对 A 2A R的 IC 50值为 8.3 ± 0.4 nM-乙基羧酰胺腺苷 (NECA) 水平为 40 nM。即使在 1 μM 的较高 NECA 浓度下, 57的拮抗作用也能持续,这模拟了肿瘤微环境 (TME) 中的腺苷水平。重要的是,57在 IL-2 产生测定和癌细胞杀伤模型中均增强了 T 细胞活化,从而证明了其作为在癌症免疫治疗中开发新型 A 2AR拮抗剂的先导潜力。
Thienopyridine Derivatives
申请人:Oizumi Kiyoshi
公开号:US20070219234A1
公开(公告)日:2007-09-20
[Problem to be Solved]The present invention provides a compound promoting osteogenesis. [Solution]
The present invention provides a compound having the following general formula (I)
wherein R
1
is H or alkyl,
R
2
is R
a
S—, R
a
O—, R
a
NH—, R
a
(R
b
)N— or cyclic amino, and
R
a
and R
b
are alkyl which may be substituted, cycloalkyl which may be substituted, or the like, or a pharmacologically acceptable salt thereof.
An improved synthesis of N-aryl and N-heteroaryl substituted homopiperazines—from conventional thermal conditions to scaling-up using microwave heating
An efficient Pd(0)-catalyzed Buchwald-Hartwig protocol for the facile preparation of N-aryl and N-heteroaryl substituted homopiperazines is described. The syntheses proceeded with aryl- and heteroaryl halides in high yields using X-Phos as best ligand. The C-N coupling products were prepared both under conventional as well as microwave heating conditions and examples for microwave-assisted upscaling are included in this study. (C) 2009 Elsevier Ltd. All rights reserved.
Discovery of small molecules that inhibit melanogenesis via regulation of tyrosinase expression
作者:Jiho Song、Hyun-e Lee、Young Jin Kim、Su Yeon Kim、Dong-Seok Kim、Kyung Hoon Min
DOI:10.1016/j.bmcl.2012.09.003
日期:2012.11
5,6,7,8-Tetrahydro-4H-cyclohepta[d]isoxazole derivatives were synthesized and evaluated as a novel class of inhibitors for alpha-melanocyte-stimulating hormone (alpha-MSH) induced melanogenesis in a mouse melanoma B16F10 cell line. Compound 8e (IC50 = 0.67 mu M), 8h (IC50 = 1.01 mu M) and 9b (IC50 = 0.99 mu M) exhibited a potent inhibitory activity approximately 85- to 126-fold greater than kojic acid, a well-known potent inhibitor. A biochemical study indicates that the activity of this series should be displayed via down-regulation of the expression of tyrosinase. (C) 2012 Elsevier Ltd. All rights reserved.