Presence of electron withdrawing groups (–Br, –Cl, Compounds 12, 14, 15 and 18) on benzylidene portion improved the antimicrobial activity of the synthesized compounds against S. aureus, B. subtilis, A. niger and C. albicans.
Redox driven chemiluminescent (CL) compounds based on thienyl and pyridazine systems, namely 2,3-dihydrothieno 3,4-d pyridazine-1,4-dione (T-Lum) and 5,7-di-thiophen-2,3-dihydrothieno 3,4-d pyridazine-1,4-dione-dione (TTT-Lum), were synthesized.
Fig. 2 Structural requirements for the antimicrobial activity of the synthesized derivatives Presence of electron withdrawing group (–Cl, Compounds 2, 5 and 12) on benzylidene portion improved the antimicrobial activity of the synthesized compounds against S. aureus, E. coli, B. subtilis and C. albicans.
Presence of electron withdrawing group (o-Cl, Compound 23) on benzylidene portion improved the anticancer activity of the synthesized compounds against human breast (MCF-7) cancer cell line.
Finally, humidity, pollutants and contaminants (H2S, SO2/SO3, NOx; Cl-compounds) provide reactive moieties.
This paper describes the design and synthesis of 3- 3- trichlorosilyl propoxy propanoyl chloride (MEG-Cl), a compound capable of forming functionalizable monolayers on hydroxylated surfaces.
The correlations between redox and C/R properties of a vitamin (riboflavin) and an antioxidant (rutin), different from Cl-IPBD compound, confirm the role of the condensation of the compounds in realizing their interactions with DNA, important for a possible future use of Cl-IPBD as a drug.
Based on the observed molar reactivity of the reaction, and depending on the presence of secondary amino group and by analogy to similar reports (18, 20) dealing with the reaction of FMOC-Cl with compounds containing secondary amino group, the reaction pathway proposed in scheme 1 is presented.
Furthermore, the S/Cl ratios of unpristine samples are dissimilar to those of pristine tephra, perhaps reflecting the dissolution of S- and Cl-bearing compounds at different rates or in response to varying quantities of rainfall.
All the azaoxaisowurtzitane cage compounds exhibit higher thermal stability than parent compound CL-20.
