Acylthiourea, Acylurea, and Acylguanidine Derivatives with Potent Hedgehog Inhibiting Activity
摘要:
The Smoothened (Smo) receptor is the major transducer of the Hedgehog (Hh) signaling pathway. On the basis of the structure of the acylthiourea Smo antagonist (MRT-10), a number of different series of analogous compounds were prepared by ligand-based structural optimization. The acylthioureas, originally identified as actives, were converted into the corresponding acylureas or acylguanidines. In each series, similar structural trends delivered potent compounds with IC50 values in the nanomolar range with respect to the inhibition of the Hh signaling pathway in various cell-based assays and of BODIPY-cyclopamine binding to human Smo. The similarity of their biological activities, in spite of discrete structural differences, may reveal the existence of hydrogen-bonding interactions between the ligands and the receptor pocket. Biological potency of compounds 61, 72, and 86 (MRT-83) were comparable to those of the clinical candidate GDC-0449. These findings suggest that these original molecules will help delineate Smo and Hh functions and can be developed as potential anticancer agents.
Design, Synthesis, and Insecticidal Activity of Novel Doramectin Derivatives Containing Acylurea and Acylthiourea Based on Hydrogen Bonding
作者:Qi Zhang、Yao Cheng、Cheng Zheng、Ping Bai、Jian Yang、Xiaoxia Lu
DOI:10.1021/acs.jafc.0c00230
日期:2020.5.27
investigation on the insecticidalactivities of several doramectin derivatives preliminarily revealed that the presence of hydrogen bonds at the C4″ position of the molecule with target protein γ-aminobutyric acid (GABA) receptor was crucial for retaining high insecticidalactivity. As a continuation of our research work on the development of new insecticides, two series of novel acylurea and acylthiourea
A series of novel hybrid molecules containing sulfanilamide and thiourea templates was designed and synthesized. These compounds were screened for antimicrobial and urease inhibitory activities. Some of the compounds revealed promising antibacterial and antifungalactivities. Fascinatingly, the majority of the compounds exhibited potential urease inhibitory activities with IC50 ranging from 0.20 to
Quinoline and quinazoline derivatives and drugs containing the same
申请人:——
公开号:US20040132727A1
公开(公告)日:2004-07-08
There are provided compounds which can be used in the treatment of diseases mediated by the autophosphorylation of a PDGF receptor, specifically, compounds which can inhibit neointima formation hypertrophy. The compounds are those represented by formula (I) or pharmacologically acceptable salts or solvates thereof:
1
wherein R
1
and R
2
represent hydrogen, alkyl or the like; R
3
, R
4
, R
5
and R
6
represent hydrogen, halogen, alkyl, alkoxy or the like; R
11
and R
12
represent hydrogen, alkyl, alkylcarbonyl or the like; and A represents any one of formulae (i) to (x), provided that compounds wherein R
3
, R
4
, R
5
and R
6
represent hydrogen and A represents group (v) wherein u is 0 (zero) and R
19
represents phenyl optionally substituted by halogen, alkyl, or alkoxy are excluded.
QUINOLINE AND QUINAZOLINE DERIVATIVES AND DRUGS CONTAINING THE SAME
申请人:KIRIN BEER KABUSHIKI KAISHA
公开号:EP1243582A1
公开(公告)日:2002-09-25
There are provided compounds which can be used in the treatment of diseases mediated by the autophosphorylation of a PDGF receptor, specifically, compounds which can inhibit neointima formation hypertrophy. The compounds are those represented by formula (I) or pharmacologically acceptable salts or solvates thereof:
wherein R1 and R2 represent hydrogen, alkyl or the like; R3, R4, R5, and R6 represent hydrogen, halogen, alkyl, alkoxy or the like; R11 and R12 represent hydrogen, alkyl, alkylcarbonyl or the like; and A represents any one of formulae (i) to (x), provided that compounds wherein R3, R4, R5 and R6 represent hydrogen and A represents group (v) wherein u is 0 (zero) and R19 represents phenyl optionally substituted by halogen, alkyl, or alkoxy are excluded.
A simple, rapid and efficient method for the synthesis of benzoyl-N-phenylthioureas under microwave irradiation is reported. The effect of microwave irradiation power, times and phase transfer catalyst on the reaction is investigated.