- Green Approach for the Synthesis of a New Class of Diamidomethane-linked Benzazolyl Pyrazoles and Evaluation as Antifungals
-
A new class of diamidomethane-linked benzoxazolyl pyrazoles, benzothiazolyl pyrazoles, and benzimidazolyl pyrazoles were synthesized from the synthetic intermediates N-benzazolylcarbamoylmethylcinnamides adopting environmentally benign methods. In fact, n
- Sowdari, Jyothi,Gudi, Yamini,Donthamsetty, Sowmya V.,Venkatapuram, Padmavathi,Adivireddy, Padmaja
-
-
Read Online
- Synthesis of esters of diaminotruxillic bis-amino acids by Pd-mediated photocycloaddition of analogs of the Kaede protein chromophore
-
The stereoselective synthesis of truxillic bis-amino esters from polyfunctional oxazolones is reported. The reaction of 4-((Z)-aryli-dene)-2-(E)-styryl-5(4H)-oxazolones 2 with Pd(OAc)2 resulted in ortho-palladation and the formation of a dinucl
- Cativiela, Carlos,Jiménez, Ana I.,Laga, Eduardo,Pop, Alexandra,Sánchez, Pablo,Silvestru, Cristian,Urriolabeitia, Esteban P.
-
-
Read Online
- A new photo-switchable "on-off" host-guest system
-
A new photo-switchable "on-off" host-guest system comprising cucurbit[7]uril (CB[7]) and a photoresponsive cinnamamide derivative (trans-(3-phenyl-acryloylamino)-acetic acid, E-1) is studied. The cinnamamide derivative and CB[7] forms a stable 1:1 host-gu
- Kim, Youngkook,Ko, Young Ho,Jung, Minseon,Selvapalam, Narayanan,Kim, Kimoon
-
-
Read Online
- TASTE-MODIFYING COMPOUNDS AND USES THEREOF
-
The present disclosure generally relates to compounds useful as taste modifiers, particularly as compounds useful for enhancing umami taste, and their use in various comestible products, such as food and beverage products.
- -
-
Page/Page column 14; 15
(2021/02/19)
-
- Novel synthesis and characterization of some new-2-(R) phenyl- 4-(-4-bromo-2-fluoro benzylidene)-oxazol-5-ones
-
In the present study a series of some new 2-(substituted) phenyl- 4-(4-bromo-2-fluoro benz-ylidene)-oxazol-5-ones (2a-2j) were synthesized by the condensation of selected substituted benzoyl glycine (1a-1j) with 4-bromo-2-fluoro benzaldehyde in the presence of fused sodium acetate and acetic anhydride. The constitution of the newly synthesized compounds has been supported by their physical properties, elemental analysis, colour, m.p, IR spectral analysis data.
- Pareek, Alok K.,Joseph,Seth, Daya S.
-
p. 1533 - 1536
(2011/10/12)
-
- Preparation and synthetic applications of N-(α,β-unsaturated acyl)-α-amino acid derivatives
-
N-(α,β-Unsaturated acyl)-α-amino acids, amides and esters are structural motifs of many biologically active natural products. An alternate and advantageous approach for the synthesis of N-(α,β-unsaturated acyl)-α-amino acid derivatives is developed via ac
- Katritzky, Alan R.,Gyanda, Reena,Meher, Nabin K.,Song, Yuming
-
experimental part
p. 1249 - 1259
(2010/10/03)
-
- Solid phase synthesis of acylglycine human metabolites
-
Acylglycines represents a large and important class of human metabolites. They are often used in medicine to identify fatty acid oxidation disorders. A highly efficient solid phase synthesis approach to obtain these clinically important compounds is devel
- Perez-Pineiro, Rolando,Dong, Ying Wei,Wishart, David S.
-
body text
p. 6706 - 6708
(2010/06/12)
-
- Characterization of the binding properties of SIRT2 inhibitors with a N-(3-phenylpropenoyl)-glycine tryptamide backbone
-
SIRT2 inhibitors with a N-(3-phenylpropenoyl)-glycine tryptamide backbone were studied. This backbone has been developed in our group, and it is derived from a compound originally found by virtual screening. In addition, compounds with a smaller 3-phenylpropenoic acid tryptamide backbone were also included in the study. Binding modes for the new compounds and the previously reported compounds were analyzed with molecular modelling methods. The approach, which included a combination of molecular dynamics, molecular docking and cluster analysis, showed that certain docking poses were favourable despite the conformational variation in the target protein. The N-(3-phenylpropenoyl)-glycine tryptamide backbone is also a good backbone for SIRT2 inhibitors, and the series of compounds includes several potent SIRT2 inhibitors.
- Kiviranta, Paeivi H.,Salo, Heikki S.,Leppaenen, Jukka,Rinne, Valtteri M.,Kyrylenko, Sergiy,Kuusisto, Erkki,Suuronen, Tiina,Salminen, Antero,Poso, Antti,Lahtela-Kakkonen, Maija,Wallen, Erik A.A.
-
p. 8054 - 8062
(2008/12/23)
-
- Artificial trinuclear metallopeptidase synthesized by cross-linkage of a molecular bowl with a polystyrene derivative
-
A novel methodology is reported for construction of active sites of artificial multinuclear metalloenzymes: Transfer of metal-chelating sites confined in a prebuilt cage to a polymeric backbone. Artificial active sites comprising two or three moieties of Cu(II) complex of tris(2-aminoethyl)amine (tren) were prepared by transfer of Cu(II)tren units confined in a molecular bowl (MB) to poly(chloromethylstyrene-co-divinylbenzene) (PCD). By treatment of unreacted chloro groups of the resulting PCD with methoxide and destruction of the MB moieties attached to PCD with acid followed by addition of Cu(II) ion to the exposed tren moieties, catalytic polymers with peptidase activity were obtained. The average number (β) of proximal Cu(II)tren moieties in the active site of the artificial multinuclear metallopeptidase was determined by quantifying the Cu(II) content. Several species of the artificial metallopeptidases with different β contents were prepared and examined for catalytic activity in hydrolysis of various cinnamoyl amide derivatives. The PCD-based catalytic polymers did not hydrolyze a neutral amide but effectively hydrolyzed carboxyl-containing amides (N-cinnamoyl glycine, N-cinnamoyl β-alanine, and N-cinnamoyl γ-amino butyrate). Analysis of the kinetic data revealed that the active sites comprising three Cu(II)tren units were mainly responsible for the catalytic activity. When analyzed in terms of k(cat), the catalytic activity of the PCD-based artificial peptidase was comparable to or better than the catalytic antibody with the highest peptidase activity reported to date. A mechanism is suggested for the effective cooperation among the three metal centers of the active site in hydrolysis of the carboxyl-containing amides.
- Moon, Sung-Ju,Jeon, Joong Won,Kim, Heesuk,Suh, Myunghyun Paik,Sun, Junghun
-
p. 7742 - 7749
(2007/10/03)
-
- Derivatives of L-proline, their preparation and their biological uses
-
The L-proline derivatives of the invention correspond to the Formula I: STR1 in which R1 corresponds to the Formula II: STR2 in which R is a carbonyl group, an acyl group --Y--CO-- or an oxy-acyl group --O--Y--CO--, Y being an alkyl or an alkenyl chain, Z being one or more hydrogen atoms, or one or more substituents chosen from among halogen atoms, CF3, alkyl or alkoxy groups and an alkylenedioxy group in the case of two neighbouring substituents, R2 is --NH2, --OH, or a derivative of these groups, A1 and A2 are amino acid residues and B1 and B2 represents a hydrogen atom or a methyl group, and the pharmacologically acceptable salts of these derivatives. These derivatives are useful particularly as the active principles of medicines possessing, in particular, a nootropic action.
- -
-
-
- SYNTHESIS AND SPECTRAL-LUMINISCENCE PROPERTIES OF 2-ARYL-4-BENZYLIDENE-5-OXAZOLONES
-
A number of 2-aryl-4-benzylidene-5-oxazolones was obtained by condensation of benzaldehyde with N-acylglycines.The absorption and fluorescence spectra in chloroform at 77 deg K were measured.The spectral characteristics of the investigated and previously
- Krasovitskii, B. M.,Lysova, I. V.,Afanasiadi, L. Sh.
-
p. 701 - 703
(2007/10/02)
-