Synthesis and SAR of 1-Hydroxy-1H-benzo[d]imidazol-2(3H)-ones as Inhibitors of d-Amino Acid Oxidase
摘要:
A series of 1-hydroxy-1H-benzo[d]imidazol-2(3H)-ones were synthesized and evaluated for their ability to inhibit human and porcine forms of D-amino acid oxidase (DAAO). The inhibitory potency is largely dependent on the size and position of substituents on the benzene ring with IC50 values of the compounds ranging from 70 nM to greater than 100 mu M. Structure-activity relationships of this new class of DAAO inhibitors will be presented in detail along with comparisons to previously published SAR data from other classes of DAAO inhibitors. Two of these compounds were given to mice orally together with D-serine to assess their effects on plasma D-serine pharmacokinetics.
Vinylogous Aza‐Michael Addition of Urea Derivatives with
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‐Quinone Methides Followed by Oxidative Dearomative Cyclization: Approach to Spiroimidazolidinone Derivatives
作者:Navpreet Kaur、Priyanka Singh、Prabal Banerjee
DOI:10.1002/adsc.202100077
日期:2021.6.8
report an efficient protocol for the synthesis of spiro-imidazolidinone-cyclohexadienones from p-quinone methides (p-QMs) and dialkyloxy ureas under mild conditions. The strategy follows a two-step process involving an initial vinylogous conjugate addition of urea derivatives to p-QMs, followed by oxidative dearomative cyclization of open-chain product to the projected spiro-imidazolidinones. This protocol
[3+3] Annulation via Ring Opening/Cyclization of Donor-Acceptor Cyclopropanes with (Un)symmetrical Ureas: A Quick Access to Highly Functionalized Tetrahydropyrimidinones
straight‐forward access to pharmacologically privileged tetrahydropyrimidinones exploiting readily available Donor–Acceptorcyclopropanes (DACs) is reported. This methodology involves the Lewis acid catalyzed synthesis of uriedo‐malonates from (un)symmetrical and unsymmetrical ureas and DACs followed by I2‐base mediated cyclization to form their corresponding tetrahydropyrimidinones in moderate to excellent
Synthesis of 3-Hydroxypyrimidine-2,4-diones. Addition of Anilines to Benzyloxy Isocyanate Synthons to Give<i>N</i>-Hydroxyureas
作者:Jeffrey L. Romine、Scott W. Martin、Nicholas A. Meanwell、James R. Epperson
DOI:10.1055/s-1994-25587
日期:——
A new method, the addition of N-benzyloxychloroformate to methyl anthranilate followed by base-catalyzed cyclization, has been employed to synthesize the N-hydroxyquinazolinedione 1 and heterocyclic derivatives. N-Benzyloxycarbonylimidazole is a useful synthon to prepare N-hydroxyureas.
A convenient method for the synthesis of N-hydroxyureas
作者:Dennis A. Parrish、Zhou Zou、C. Leigh Allen、Cynthia S. Day、S. Bruce King
DOI:10.1016/j.tetlet.2005.10.091
日期:2005.12
Treatment of amines with 1-(4-nitrophenol)-N-(O-benzylhydroxy)carbamate yields the O-benzyl protected N-hydroxyureas. Hydrogenation of the O-benzyl protected N-hydroxyureas over 5% Pd/BaSO4 cleanly gives the N-hydroxyureas in good yield. In addition to primary and secondary aliphatic and aromaticamines, this method converts amino sugars to the corresponding N-hydroxyureas without extensive protecting
In order to seek a urease inhibitor more potent than hydroxyurea (1), its alkyl- or phenyl-substituted derivatives were synthesized and evaluated for their effect on the jack bean urease. Of 16 compounds tested, m-methyl- (10) and m-methoxy-phenyl substituted hydroxyurea (13) showed the most potent inhibitory activities against the enzyme.