1203-89-0Relevant academic research and scientific papers
Green synthesis of novel phosphonate derivatives using ultrasonic irradiation
Sharafian, Shirin,Hossaini, Zinatossadat,Rostami-Charati, Faramarz,Khalilzadeh, Mohammad A.
, p. 1283 - 1291 (2020/11/19)
[Figure not available: see fulltext.] A novel and efficient procedure for the generation of quinazolinone phosphonate derivatives employing the reaction of euparin, isatin or its derivatives, primary amines, dialkyl acetylenedicarboxylates, trimethyl phosphite or triphenyl phosphite, and acidic solution of hydrogen peroxide in aqueous media at ambient temperature under ultrasonic irradiation was developed. Without ultrasonic irradiation, the reaction does not proceed and agitation of the reaction mixture is difficult. Some advantages of this procedure are: short time of reaction, high yields of products, easy isolation of products.
QUINAZOLINE-2,4-DIONE DERIVATIVES AS PARP INHIBITORS
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Page/Page column 56, (2020/11/30)
The present invention relates to compounds of formula (I) and compositions containing said compounds acting as PARP (Poly (ADP- ribose) polymerase) inhibitors. Moreover, the present invention provides processes for the preparation of the disclosed compounds, as well as methods of using them, for instance as a medicine, in particular for the treatment of cell proliferative disorders, such as cancer.
1,3,4-OXADIAZOLE HOMOPHTHALIMIDE DERIVATIVE COMPOUNDS AS HISTONE DEACETYLASE 6 INHIBITOR, AND THE PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
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Page/Page column 107-108, (2020/12/11)
The present invention relates to novel compounds having a histone deacetylase 6 (HDAC6) inhibitory activity, stereoisomers thereof or pharmaceutically acceptable salts thereof, a medicinal use thereof, and a method for preparing the same. The novel compounds according to the present invention, stereoisomers thereof or pharmaceutically acceptable salts thereof have the histone deacetylase 6 (HDAC6) inhibitory activity, and are effective in preventing or treating HDAC6-related diseases, comprising infectious diseases; neoplasm; endocrinopathy; nutritional and metabolic diseases; mental and behavioral disorders; neurological diseases; eye and ocular adnexal diseases; circulatory diseases; respiratory diseases; digestive diseases; skin and subcutaneous tissue diseases; musculoskeletal system and connective tissue diseases; and teratosis or deformities, or chromosomal aberration.
De novo synthesis of 2,2-bis(dimethylamino)-3-alkyl or benzyl 2,3-dihydroquinazolin-4(1H)-one compounds
Jaganmohan, Chikkanti,Vinay Kumar,Sandeep Reddy,Mohanty, Sandeep,Kumar, Jaydeep,Venkateswara, Rao,Tadiparthi, Krishnaji,Raghunadh, Akula
supporting information, p. 168 - 174 (2018/01/01)
A new versatile and efficient strategy for the synthesis of 2,2-bis(dimethylamino)-3-alkyl or benzyl 2,3-dihydroquinazoline-4(1H)-one compounds has been developed by one-pot multicomponent reaction with isatoic anhydride, amines followed by in situ-generated Vilsmeier reagent. The reaction has also been studied with different amines and solvents.
I2-catalyzed aerobic oxidative C(sp3)-H amination/C-N cleavage of tertiary amine: Synthesis of quinazolines and quinazolinones
Yan, Yizhe,Xu, Ying,Niu, Bin,Xie, Huifang,Liu, Yanqi
, p. 5581 - 5587 (2015/06/16)
An iodine-catalyzed oxidative C(sp3)-H amination/C-N cleavage of tertiary amines couducted under an oxygen atmosphere has been developed and affords a route to quinazolines and quinazolinones in good to excellent yields via a domino ring annulation. The method is metal-free, peroxide-free, and operationally simple to implement with a wide scope of substrates and represents a new avenue for multiple C-N bond formations.
QUINAZOLINEDIONES AND THEIR USE
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Page/Page column 32; 35, (2012/10/07)
The present invention discloses compounds of formula (I), or pharmaceutically acceptable salts or prodrugs thereof, which inhibit the poly(ADP-ribose) polymerases (PARP) and therefore are useful for treating diseases, disorders, and conditions related to PARP. The present invention also discloses pharmaceutical compositions comprising a compound of formula (I), and methods of using such compounds to inhibit PARP enzymes, and to treat diseases, disorders, and conditions related to PARP.
BENZIMIDAZOLE DERIVATIVES AND THEIR USE AS ANTIVARAL AGENTS
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Page/Page column 83, (2010/10/03)
The invention provides compounds of formula (I) wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and R12 are as defined in the specification, and optical isomers, racemates and tautomers thereof, and pharmaceutically acceptable salts thereof; together
Some transformations of tertiary N-furfurylamides of aromatic and heteroaromatic carboxylic acids under acidic conditions
Stroganova, Tatyana A.,Vasilin, Vladimir K.,Zelenskaya, Elena A.,Red'kin, Viktor M.,Krapivin, Gennady D.
experimental part, p. 3088 - 3098 (2009/04/06)
Acid-catalyzed transformations of tertiary N-furfurylamides of ortho-amino substituted aromatic and heteroaromatic carboxylic acids accompanied by elimination of the furfuryl moiety are investigated. Georg Thieme Verlag Stuttgart.
Metabolites of febrifugine and its synthetic analogue by mouse liver S9 and their antimalarial activity against Plasmodium malaria parasite
Hirai, Shingo,Kikuchi, Haruhisa,Kim, Hye-Sook,Begum, Khurshida,Wataya, Yusuke,Tasaka, Hidehisa,Miyazawa, Yuriko,Yamamoto, Keisuke,Oshima, Yoshiteru
, p. 4351 - 4359 (2007/10/03)
Quinazolinone type alkaloids, febrifugine (1) and isofebrifugine (2), isolated from Dichroa febrifuga roots, show powerful antimalarial activity against Plasmodium falciparum. Unfortunately, their emetic effect and other undesirable side effects have precluded their clinical use for malaria. Because of their antimalarial potency, analogues were searched for, with the goal of preserving the strong antimalarial activity, while dramatically reducing side effects. We expected that compounds useful in drug development would exist in metabolites derived from 1 and Df-1 (3), the condensation product of 1 with acetone, by mouse liver S9. Feb-A and -B (4 and 5) were isolated as the major metabolites of 1. In addition to 4 and 5, feb-C and -D (6 and 7) were also purified from the metabolic mixture of 3. Compounds 4 and 5 were compounds oxidized at C-6 and C-2 of the quinazolinone ring of 1, respectively. Compounds 6 and 7, derived from 3, also bear febrifugine type structures in which the 4″- and 6″-positions of the piperidine ring of 1 were oxidized. In vitro antimalarial and cytotoxic tests using synthetically obtained racemic 4-6 and enantiomerically pure 7 demonstrated that 4 and 6 had antimalarial activity against P. falciparum, of similar potency to that of 1, with high selectivity. The antimalarial activity of 5 and 7, however, was dramatically decreased in the test. The in vitro antimalarial activity of analogues 22 and 43, which are stereoisomers of 4 and 6, was also evaluated, showing that 22 is active. The results suggest that basicity of both the 1- and the 1″-nitrogen atoms of 1 is crucial in conferring powerful antimalarial activity. Racemic 4 and 6 exhibited powerful in vivo antimalarial activity against mouse malaria P. berghei, and especially, no serious side effects were observed with 4. Thus, the metabolite 4 appears to be a promising lead compound for the development of new types of antimalarial drugs.
