Results 61 to 70 of about 878 (177)

Synthesis and Structural Studies of Aza Analogues of Functionalized Amino Acids:  New Anticonvulsant Agents

open access: yes, 2016
We have reported that functionalized amino acids 1 display potent anticonvulsant activities in mice and rats, and that the activity resides primarily in the d-isomer.
Harold Kohn (1333722)   +3 more
core   +1 more source

Submonomer Synthesis of A Hybrid Peptoid–Azapeptoid Library

open access: yes, 2016
We recently reported efficient conditions for the synthesis of N-azapeptoid libraries via the typical submonomer strategy of peptoid synthesis but that substitutes N-acyl hydrazides for primary amines as submonomers.
Bani Kanta Sarma (2037217)   +1 more
core   +1 more source

Estudo da síntese espectros I.V. e atividade farmacobiológica de 1-acil-4-aril-tiosemicarbazidas e triazóis 3,4,5-trissubstituídos [PDF]

open access: yes, 1987
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Curso de Pós-Graduação em Físico ...
Peres, Marize Terezinha Lopes Pereira
core  

Design, Synthesis and Biological Activities of (Thio)Urea Benzothiazole Derivatives. [PDF]

open access: yesInt J Mol Sci, 2023
Mendieta-Wejebe JE   +4 more
europepmc   +1 more source

Solid-Phase Synthesis of Hybrid 2,5-Diketopiperazines Using Acylhydrazide, Carbazate, Semicarbazide, Amino Acid, and Primary Amine Submonomers

open access: yes, 2020
We report the solid-phase synthesis of N,N′-di­(acylamino)-2,5-diketopiperazine, an acylhydrazide-based conformationally rigid 2,5-DKP scaffold having exocyclic N–N bonds.
Abdur Rahim (5699147)   +9 more
core   +1 more source

di‐π‐methane rearrangement of benzonorbornadiene system

open access: yes, 1998
The [4 + 2] cycloadduct 17 of 2,3-dimethylidene-1,2,3,4-tetrahydro-1,3-methanonaphthalene and 4-phenyl-4H-1,2,4-triazole-3,5-dione (PTAD) was subjected to a tripler-sensitized di-pi-methane rearrangement.
Altundas, ALİYE   +8 more
core   +1 more source

Manipulation of N,O-Nucleophilicity:  Efficient Formation of 4-N-Substituted 2,4-Dihydro-3H-1,2,4-Triazolin-3-ones

open access: yes, 2016
A new efficient two-step synthesis of 2,4-dihydro-3H-1,2,4-triazolin-3-ones (triazolinones) from readily available amines is reported. Our novel conditions using hexamethyl disilazane, bromotrimethylsilane, and a catalytic amount of ammonium sulfate ...
Xianhai Huang (2026387)   +4 more
core   +1 more source

Synthesis and anti-microbial activity of (Z)-4-(4-substituted-thiazol-2-yl)-1-(2-oxoindolin-3-ylidene) semicarbazide and its derivatives

open access: yes, 2010
1117-11263-[(2S)-3-Acetyl-5-amino-N-(4-substituted-thiazol-2-yl)2,3-dihydro-1,3,4-oxadiazol-2-yl]-indolin-2-yl acetates, 1-{N-[(2R)-2-(-2-oxoindolin-3-ylidene)-4-oxo-1,3-thiazolidin-3-yl]-3-(4-substituted-thiazol-2yl)ureas, N-(4-substituted-thiazol-2 ...
Basavarajaiah, S M   +1 more
core  

Synthesis of 1-benzyl-6-azauracil derivatives, chlorinated in the nucleus

open access: yes, 1981
Glyoxylic acid 2-benzylsemicarbazone derivatives, chlorinated in the aromatic nucleus (Ia-Id) were prepared either by reaction of glyoxylic acid semicarbazone with the corresponding benzyl chlorides or by treatment of benzylidene semicarbazide with ...
Petr Bedrník   +5 more
core   +1 more source

Pathway complexity in fibre assembly: from liquid crystals to hyper-helical gelmorphs. [PDF]

open access: yesChem Sci, 2023
Contreras-Montoya R   +11 more
europepmc   +1 more source

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