Results 61 to 70 of about 895 (179)

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

Carbonic Anhydrase Inhibitors: Design, Synthesis, and Biological Evaluation of Novel Sulfonyl Semicarbazide Derivatives

open access: yes, 2016
A series of novel sulfonyl semicarbazides 5–13 was designed, synthesized, and evaluated for human carbonic anhydrase (hCA) inhibition. The new sulfonyl semicarbazides were tested against a panel of hCA isoforms I, II, IX, and XII, using acetazolamide ...
Prashant S. Kharkar (1780549)   +4 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

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

Anticonvulsant 4-aryl semicarbazides & thioureas

open access: yes, 1985
Among a series of anticonvulsant 1-aryl semicarbazides, 1-(3-5-bistrifluoromethyl)phenylsemicarbazide, C3884-Go(11) and its 4-methyl derivative, C 3165-Go (12) showed good activity of long duration in the electroshock test in mice and rats.
Rajappa, S.   +3 more
core  

Novel 1-acyl-4-substituted semicarbazide derivatives of primaquine - synthesis, cytostatic, antiviral and antioxidative studies

open access: yes, 2013
A series of novel 1,4-substituted semicarbazides 5a-g with a primaquine moiety bridged by a carbonyl group at position 1 and a cycloalkyl, aryl, benzyloxy or hydroxy substituent at position 4 were prepared and biologically evaluated.
Kralj, Marijeta   +8 more
core   +1 more source

Alok 1

open access: yes, 2010
A new class of highly efficient, convenient and rapid synthesis of fluorine substituted thiosemicarbazide derivatives containing different functional groups have been obtained by the condensation reactions of substituted phenyl-isothiocyanate with R ...
Administrator   +3 more
core  

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

Design, Synthesis and Glioblastoma Activity of 1,3-Diazinane Based Aryl Amides and Benzo Fused Heterocycles [PDF]

open access: yes, 2017
The development of novel targeted therapeutics for the treatment of cancer remains difficult due to the complex nature of the disease itself as well as the challenges associated with the synthesis of these therapeutics.
Hron, Rebecca
core  

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