Results 31 to 40 of about 6,045 (297)

Norbornane-based antibacterial agents: Benzyl and benzoyl substituted guanidines

open access: yesEuropean Journal of Medicinal Chemistry Reports, 2022
There is a pressing need to develop new antibiotics to replace those rendered ineffective as a result of widespread antimicrobial resistance. Naturally occurring cationic antimicrobial peptides (CAMPs) exhibit broad-spectrum antibacterial activity and ...
Gareth E. Boer   +3 more
doaj   +1 more source

Guanidine Chemistry

open access: yesChemical and Pharmaceutical Bulletin, 2010
Guanidines are categorized as strong organobases; however, their catalytic utility in organic synthesis has not been discussed thoroughly. The author's group has extensively and systematically studied their potential ability focusing on: 1) modified guanidines as chiral auxiliaries; 2) guanidinium ylides for aziridine formation; 3) the affinity of ...
openaire   +3 more sources

Modified Guanidines as Potential Chiral Superbases. 1. Preparation of 1,3-Disubstituted 2-Iminoimidazolidines and the Related Guanidines through Chloroamidine Derivatives

open access: yes, 2016
Modified guanidines were explored as potential chiral superbases. Thus, chiral 1,3-dimethyl-2-iminoimidazolidines with or without 4,5-diphenyl groups, their guanidinium salts, and the 2-iminoimidazolidines with (S)-1-phenylethyl groups on the ring ...
Keiko Fukuda (2640976)   +2 more
core   +1 more source

Development of a Promising Method for Producing Oligomeric Mixture of Branched Alkylene Guanidines to Improve Substance Quality and Evaluate Their Antiviral Activity against SARS-CoV-2

open access: yesMolecules, 2021
This paper reports the synthesis of branched alkylene guanidines using microfluidic technologies. We describe the preparation of guanidine derivatives at lower temperatures, and with significantly less time than that required in the previously applicable
Denis O. Shatalov   +10 more
doaj   +1 more source

Phase-Transfer-Catalyzed Alkylation of Guanidines by Alkyl Halides under Biphasic Conditions:  A Convenient Protocol for the Synthesis of Highly Functionalized Guanidines

open access: yes, 2016
An operationally straightforward and efficient method for the alkylation of carbamate-protected guanidines with various alkyl halides and mesylates is described. This protocol proceeds via deprotonation of the acidic N-carbamate hydrogen of the guanidine
David A. Powell (1503226)   +2 more
core   +1 more source

Detection and substitution-pattern determination of guanidines [PDF]

open access: yes, 1976
The guanidine function can be detected and its substitution pattern determined taking into account the1H-NMR signals of the N−H and N−C−H groups. Satisfactory results were obtained with mono-to penta-substituted guanidines (as picrate salts).Facultad de ...
González, María Eugenia   +2 more
core   +2 more sources

Norepinephrine-Transporter-Targeted and DNA-Co-Targeted Theranostic Guanidines

open access: yes, 2019
High risk neuroblastoma often recurs, even with aggressive treatments. Clinical evidence suggests that proliferative activities are predictive of poor outcomes.
Donald W. Coulter (6910190)   +3 more
core   +2 more sources

ZW4864‐mediated inhibition of the β‐catenin/BCL9/BCL9L complex reveals therapeutic potential in bladder cancer

open access: yesMolecular Oncology, EarlyView.
BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi   +11 more
wiley   +1 more source

Design and synthesis of a photoswitchable guanidine catalyst

open access: yesBeilstein Journal of Organic Chemistry, 2012
A novel design as well as a straight-forward synthesis for a photoswitchable guanidine catalyst is reported. Intense studies of the photochromic properties demonstrated the reversible switchability of its photosensitive azobenzene moiety. Its activity in
Philipp Viehmann, Stefan Hecht
doaj   +1 more source

Eco-friendly methods of synthesis and preliminary biological evaluation of sulfonamide derivatives of cyclic arylguanidines

open access: yesUltrasonics Sonochemistry, 2022
The chemotype of arylsulfonamide derivatives of cyclic arylguanidines is a source of molecules with valuable biological activities, including antimicrobial and antitumor properties.
Przemysław Zaręba   +5 more
doaj   +1 more source

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