Synthesis, Biological Activity, and Three-Dimensional Quantitative Structure−Activity Relationship Model for a Series of Benzo[c]quinolizin-3-ones, Nonsteroidal Inhibitors of Human Steroid 5α-Reductase 1
摘要:
New 5alpha-reductase 1 (5alphaR-1) inhibitors were designed to complete a consistent set of analogues suitable for a 3D QSAR study. These compounds were synthesized by a modification of the aza-Robinson annulation, further functionalized by Pd-catalyzed cross-coupling processes, and were tested with human 5alphaR-1 expressed in Chinese hamster ovary 1827 cells. It turned out that the potency of the resulting inhibitors was strongly dependent on the type of substitution at the 8 position, with the IC50 values ranging from 8.1 to 1050 nM. The construction of this homogeneous set of molecules allowed a 3D QSAR study. In particular, comparative molecular field analysis (CoMFA) was used to correlate the potency of the inhibitors with their physicochemical features. Highly accurate evaluations of the atomic point charges were carried out by means of quantum chemical calculations at the DFT/B3LYP level of theory followed by the RESP fitting procedure. It turned out that increasing the reliability of electrostatic parameters greatly affected the statistical results of the QSAR analysis. The 3D QSAR model proposed could be very useful in the further development of 5alphaR-1 inhibitors, which are suitable candidates to be evaluated as drugs in the treatment of 5alphaR-1 related diseases such as acne and alopecia in men and hirsutism in women.
[EN] 2- [ (2-{PHENYLAMINO}-1H-PYRROLO [2, 3-D] PYRIMIDIN-4-YL) AMINO] BENZAMIDE DERIVATIVES AS IGF-1R INHIBITORS FOR THE TREATMENT OF CANCER<br/>[FR] DÉRIVÉS DE 2-[(2-{PHÉNYLAMINO}-1H-PYRROLO[2,3-D]PYRIMIDIN-4-YL)AMINO]BENZAMIDE EN TANT QU'INHIBITEUR D'IGF-1R POUR LE TRAITEMENT DU CANCER
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2009020990A1
公开(公告)日:2009-02-12
Novel pyrrolopyrimidines as shown in formula (I) and pharmaceutically acceptable derivatives thereof. The compounds are useful in the inhibition of IGF-1R.
新型吡咯吡嘧啶如公式(I)所示,及其药用可接受的衍生物。这些化合物在抑制IGF-1R方面是有用的。
Inhibitors of the Human Aldosterone Sythase CYP11B2
申请人:Hartmann Rolf W.
公开号:US20110112067A1
公开(公告)日:2011-05-12
The invention provides compounds of the general formula (I)
which are inhibitors of the human aldosterone synthase, and also pharmaceutical compositions containing these compounds, and a method of treating of hyperaldosteronism and/or disorders or diseases that are mediated by 11β-hydroxylase (CYP11B1) with these compounds.
A new triterpene glycoside, 3-O-[(α-L-rhamnopyranosyl)(1→2)]-[β-D-glucuronopyranosyl-6-O-methyl ester]-olean-12-ene-28-olic acid (1) and a new indole alkaloid, 5-methoxy-2-oxoindolin-3-acetic acid methyl ester (5) were isolated from the leaves of Acanthopanax senticosus Harms along with six known compounds. The structures of the new compounds were determined by means of 2D-NMR experiments and chemical
Processes for preparing 6-hydroxy-3,4-dihydroquinolinone, cilostazol and N-(4-methoxyphenyl)-3-chloropropionamide
申请人:——
公开号:US20020032333A1
公开(公告)日:2002-03-14
A process for preparing 6-hydroxy-3,4-dihydroquinolinone by intramolecular Friedel-Crafts alkylation of N-(4-methoxyphenyl)-3-chloropropionamide in which an equivalent of N-(4-methoxyphenyl)-3-chloropropionamide is contacted with a Lewis acid in DMSO or a high boiling amide or amine at an elevated temperature of from about 150° C. to about 220° C. is provided. The process produces 6-HQ in high yield and a high state of purity such that it may be used in subsequent reactions toward the preparation of cilostazol without intermediate purification. A process for preparing cilostazol from 6-hydroxy-3,4-dihydroquinolinone prepared by the process and improved processes for preparing N-(4-methoxyphenyl)-3-chloropropionamide are also provided.
[EN] PROCESSES FOR PREPARING 6-HYDROXY-3,4-DIHYDROQUINOLINONE, CILOSTAZOL AND N-(4-METHOXYPHENYL)-3-CHLOROPROPIONAMIDE<br/>[FR] PROCEDES DE PREPARATION DE 6-HYDROXY-3,4-DIHYDROQUINOLINONE, DE CILOSTAZOL ET DE N-(4-METHOXYPHENYL)-3-CHLOROPROPIONAMIDE
申请人:TEVA PHARMA
公开号:WO2001070697A1
公开(公告)日:2001-09-27
A process for preparing 6-hydroxy-3,4-dihydroquinolinone by intramolecular Friedel-Crafts alkylation of N-(4-methoxyphenyl)-3-chloropropionamide in which an equivalent of N-(4-methoxyphenyl)-3-chloropropionamide is contacted with a Lewis acid in DMSO or a high boiling amide or amine at an elevated temperature of from about 150 °C to about 220 °C is provided. The process produces 6-HQ in high yield and a high state of purity such that it may be used in subsequent reactions toward the preparation of cilostazol without intermediate purification. A process for preparing cilostazol from 6-hydroxy-3,4-dihydroquinolinone prepared by the process and improved processes for preparing N-(4-methoxyphenyl)-3-chloropropionamide are also provided.