37707-79-2Relevant academic research and scientific papers
A conjugated system of curcumin analogs increase and its preparation method and application
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, (2017/08/25)
The invention discloses a curcumin analogue with an enlarged conjugated system and a preparation method and application thereof. The structural feature of the curcumin analogue is shown in the general formula (I), wherein R1 is hydrogen and methoxyl, R2 is hydrogen, hydroxy and methoxyl, and two naphthalene nucleuses are connected through a 1,6-heptadiene-3,5-diketone joining chain. The naphthol is used as a raw material, the naphthalene nucleus curcumin analogue with the superior activity for hepatoma carcinoma cell HepG2 cell proliferation is synthesized, and the activity of the curcumin analogue is superior to that of natural curcumin. The curcumin analogue with the enlarged conjugated system has the great significance in guiding discovery of prodrugs and designing lead compounds.
C17,20-lyase inhibitors. Part 2: Design, synthesis and structure-activity relationships of (2-naphthylmethyl)-1H-imidazoles as novel C17,20-lyase inhibitors
Matsunaga, Nobuyuki,Kaku, Tomohiro,Ojida, Akio,Tanaka, Toshimasa,Hara, Takahito,Yamaoka, Masuo,Kusaka, Masami,Tasaka, Akihiro
, p. 4313 - 4336 (2007/10/03)
A series of 1- and 4-(2-naphthylmethyl)-1H-imidazoles (3 and 4) has been synthesized and evaluated as C17,20-lyase inhibitors. Several 6-methoxynaphthyl derivatives showed potent C17,20-lyase inhibition, suppression of testosterone biosynthesis in rats and reduction in the weight of prostate and seminal vesicles in rats, whereas most of these compounds increased the liver weight after consecutive administrations. The effect on the liver weight was removed by incorporation of a hydroxy group and an isopropyl group at the methylene bridge, as seen in (S)-28d and (S)-42. Selectivity for C 17,20-lyase over 11β-hydroxylase is also discussed, and (S)-42 was found to be a more than 260-fold selective inhibitor. Furthermore, (S)-42 showed a potent suppression of testosterone biosynthesis after a single oral administration in monkeys. These data suggest that (S)-42 may be a promising agent for the treatment of androgen-dependent prostate cancer.
Derivatives of naphthalene with comt inhibiting activity
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, (2008/06/13)
Compounds of formula (I′), wherein A, R1 to R3 and t are as defined in the disclosure, exhibit COMT enzyme inhibiting activity so that they are useful as COMT inhibitors.
Naphthalene derivatives, their production and use
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, (2008/06/13)
A composition containing a compound of the formula: wherein A is a nitrogen-containing heterocyclic group which may be substituted, R1 is a hydrogen atom, hydrocarbon group which may be substituted, or monocyclic aromatic heterocyclic group which may be substituted, R2 is a hydrogen atom or a lower alkyl group which may be substituted, R3, R4, R5, R6, R7, R8 and R9 are independently a hydrogen atom, a hydrocarbon group which may be substituted, a hydroxy group which may be substituted, a thiol group which may be substituted, an amino group which may be substituted, an acyl group or a halogen atom, a salt thereof or a prodrug thereof has steroid C17,20-lyase inhibitory activity, and is useful for preventing and treating for example, primary cancer of malignant tumor, its metastasis and recurrence thereof.
PROCESS FOR PRODUCING OPTICALLY ACTIVE NAPHTHALENE DERIVATIVE AND OPTICAL RESOLVER THEREFOR
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, (2008/06/13)
The present invention provides a method of producing an optically active form of a compound represented by the formula (I) having a steroid C17,20-lyase inhibitory activity and is useful as an agent for the prophylaxis or treatment of prostatis
Synthesis of Hexahydropyrroloisoquinolines - Analogs of Phenanthroindolizidine Anticancer Alkaloids
Gaur, S. P.,Jain, Padam C.,Anand, Nitya
, p. 46 - 51 (2007/10/02)
A convenient preparative route has been developed for the synthesis of hexahydropyrroloisoquinolines involving condensation of an araldehyde with ethyl 4-nitrobutanoate followed by LAH reduction and subsequent cyclization with H2SO4 to 2-arylmethylpyrrolidines.The latter on formylation and Bischler-Napieralsky cyclization followed by NaBH4 reduction give the required pyrroloisoquinolines.Using this method, 8-methoxy-1,2,3,5,10,10a-hexahydropyrroloisoquinoline (IXa); 7,8-dimethoxy-1,2,3,5,10,10a-hexahydropyrroloisoquinoline (IXb); 7,9,10,11,11a,12-hexahydrobenzopyrroloisoquinoline (Xa); 3-methoxy-7,9,10,11,11a,12-hexahydrobenzopyrroloisoquinoline (Xb); 7,7a,8,9,10,12-hexahydrobenzopyrroloisoquinoline (XIa); 3-methoxy-7,7a,8,9,10,12-hexahydrobenzopyrroloisoquinoline (XIb) and 2,3-dimethoxy-7,7a,8,9,10,12-hexahydrobenzopyrroloisoquinoline (XIc) have been synthesized.None of these compounds has shown any noteworthy anticancer activity while few have exhibited interesting antihistaminic, β-blocking, hypertensive, antiinflammatory and antireserpine activities.
Heterocyclic alkyl naphthols
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, (2008/06/13)
Aminoalkylnaphthols and esters thereof, useful as cardiotonic or antibacterial agents, are prepared from the corresponding RO-naphthalenealkylamines, certain of which are also useful as cardiotonic agents.
5(OR 6)-[(Substituted-amino)alkyl]-2,3-naphthalenediols
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, (2008/06/13)
Aminoalkylnaphthols and esters thereof, useful as cardiotonic agents, prepared from the corresponding RO-naphthalenealkylamines, certain of which are also useful as cardiotonic agents, are disclosed.
