- Synthesis of bisphenol neolignans inspired by honokiol as antiproliferative agents
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Honokiol (2) is a natural bisphenol neolignan showing a variety of biological properties, including antitumor activity. Some studies pointed out 2 as a potential anticancer agent in view of its antiproliferative and pro-apoptotic activity towards tumor cells. As a further contribution to these studies, we report here the synthesis of a small library of bisphenol neolignans inspired by honokiol and the evaluation of their antiproliferative activity. The natural lead was hence subjected to simple chemical modifications to obtain the derivatives 3–9; further neolignans (12a-c, 13a-c, 14a-c, and 15a) were synthesized employing the Suzuki–Miyaura reaction, thus obtaining bisphenols with a substitution pattern different from honokiol. These compounds and the natural lead were subjected to antiproliferative assay towards HCT-116, HT-29, and PC3 tumor cell lines. Six of the neolignans show GI50 values lower than those of 2 towards all cell lines. Compounds 14a, 14c, and 15a are the most effective antiproliferative agents, with GI50 in the range of 3.6–19.1 μM, in some cases it is lower than those of the anticancer drug 5-fluorouracil. Flow cytometry experiments performed on these neolignans showed that the inhibition of proliferation is mainly due to an apoptotic process. These results indicate that the structural modification of honokiol may open the way to obtaining antitumor neolignans more potent than the natural lead.
- Cardullo, Nunzio,Barresi, Vincenza,Muccilli, Vera,Spampinato, Giorgia,D’Amico, Morgana,Condorelli, Daniele Filippo,Tringali, Corrado
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- WDR5-MYC INHIBITORS
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Substituted N-phenyl sulfonamide compounds inhibit WDR5-MYC interactions, and the compounds and their pharmaceutical compositions are useful for treating disorders and conditions in a subject, such as cancer cell proliferation.
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Paragraph 00598-00599; 00749; 00751
(2021/02/05)
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- NOVEL 6-5 BICYCIC HETEROCYCLIC DERIVATIVE AND MEDICAL USE THEREOF
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An object of the present invention is to provide a medicament as a thyroid hormone receptor ligand which is sufficient in drug efficacy and safety, and has the excellent action as a drug. The present invention provides a compound represented by the following general formula (I) or a pharmaceutically acceptable salt thereof: [wherein [Chemical Formula 2] is a single bond or a double bond; A is -CH2- or -CO-; X, Y, and Z are each independently a nitrogen atom or a carbon atom; R1 is a hydrogen atom or an aralkyl group; R2 is an alkyl group or an aralkyl group, etc.; R3 is a hydrogen atom or an alkyl group, etc.; R4 is a hydrogen atom or an alkyl group; R5 is a hydrogen atom, an alkyl group or a halo lower alkyl group, etc.; R6 is a hydrogen atom or an alkyl group; R7 is a hydrogen atom, etc.; R8 is a hydrogen atom, or an alkyl group, etc.; and E is -NHCO-G-COR12, etc. (wherein G is a single bond or an alkylene group, and R12 is a hydroxy group or an alkoxy group)].
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Page/Page column 34
(2009/04/23)
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- AMINO ALCOHOL DERIVATIVE, MEDICINAL COMPOSITION CONTAINING THE SAME, AND USE OF THESE
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The present invention provides compounds represented by general formula (I): a prodrug thereof, or pharmaceutical acceptable salts thereof, wherein R1 is hydrogen or lower alkyl; each of R2 and R3 is independently hydrogen or lower alkyl; each of R4, R5 and R6 is independently hydrogen, halogen, lower alkyl or lower alkoxy; R7 is hydrogen or lower alkyl; R8 is hydrogen, halogen, lower alkyl, lower alkoxy, etc; R9 is -COR10, -A1-COR10, -O-A2-COR10, etc; Ar is optionally substituted phenyl or heteroaryl; and A is a bond, -OCH2-, etc, which exhibit potent and selective β3-adrenoceptor stimulating activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
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Page/Page column 30
(2008/06/13)
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- AMINO ALCOHOL DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME, AND USE THEREOF
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The present invention provides compounds represented by general formula (I): or pharmaceutical acceptable salts thereof, wherein R1 and R2 are each hydrogen or lower alkyl; R3 R4, R5 and R6 are each hydrogen, halogen, lower alkyl or lower alkoxy; R7 and R8 are each hydrogen, halogen, lower alkyl, halo-lower alkyl, lower alkoxy, cycloalkyl, aryl, heteroaryl, cyano, a hydroxyl group, lower acyl, carboxy or the like; R9 is -C(O)-R10, -A1-C(O)-R10, -O-A2-C(O)-R10 or a tetrazol-5-yl group, which exhibit potent and selective β3-adrenoceptor stimulating activities. The present invention also provides pharmaceutical compositions containing said compound, and uses thereof.
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Page/Page column 25
(2008/06/13)
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- INHIBITORS OF HEPATITIS C VIRUS RNA-DEPENDENT RNA POLYMERASE, AND COMPOSITIONS AND TREATMENTS USING THE SAME
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The invention relates to compounds of the formula (I) and to pharmaceutically acceptable salts, solvates, prodrugs and metabolites thereof, wherein W, Z, R1and R2, are as defined herein. The invention also relates to methods of treating Hepatitis C virus in mammals by administering the compounds of formula (I), and to pharmaceutical compositions for treating such disorders, which contain the compounds of formula (I). The invention also relates to methods of preparing the compounds of formula (I).
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Page 119-120
(2008/06/13)
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- Arylthiazolidinedione derivatives
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Substituted 5-aryl-2,4-thiazolidinediones and oxazolidinediones are potent agonists of PPAR, and are therefore useful in the treatment, control or prevention of diabetes, hyperglycemia, hyperlipidemia (including hypercholesterolemia and hypertriglyceridem
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