917813-54-8Relevant articles and documents
Synergistic antifungal effects of curcumin derivatives as fungal biofilm inhibitors with fluconazole
Dong, Huai-Huai,Wang, Yuan-Hua,Peng, Xue-Mi,Zhou, He-Yang,Zhao, Fei,Jiang, Yuan-Ying,Zhang, Da-Zhi,Jin, Yong-Sheng
, p. 1079 - 1088 (2021/02/11)
Lack of novel antifungal agents and severe drug resistance has led to high incidence and associated mortality of invasive fungal infections. To tackle the challenges, novel antifungal agents with anti-resistant potency are highly desirable. Thus, derivati
A new family of homoleptic copper complexes of curcuminoids: Synthesis, characterization and biological properties
Meza-Morales, William,Machado-Rodriguez, Juan C.,Alvarez-Ricardo, Yair,Obregón-Mendoza, Marco A.,Nieto-Camacho, Antonio,Toscano, Rubén A.,Soriano-García, Manuel,Cassani, Julia,Enríquez, Raúl G.
, (2019/03/19)
We report herein the synthesis and crystal structures of five new homoleptic copper complexes of curcuminoids. The scarcity of reports of homoleptic complex structures of curcuminoids is attributed to the lack of crystallinity of such derivatives, and therefore, their characterization by single crystal X-ray diffraction is rare. The ligand design suppressing the phenolic interaction by esterification or etherification has afforded a significant increase in the number of known crystal structures of homoleptic metal complexes of curcuminoids revealing more favorable crystallinity. The crystal structures of the present new copper complexes show four-fold coordination with a square planar geometry. Two polymorphs were found for DiBncOC-Cu when crystallized from DMF. The characterization of these new complexes was carried out using infrared radiation (IR), nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR), and single crystal X-ray diffraction (SCXRD) and the antioxidant and cytotoxic activity of the obtained complexes was evaluated.
CURCUMIN DERIVATIVE
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Paragraph 0039; 0046; 0047; 0048, (2018/10/19)
PROBLEM TO BE SOLVED: To provide a new curcumin derivative. SOLUTION: A chemical compound is shown by formula (1) as follows. In the formula, R1 is a 1-5C alkyl group, a 2-5C alkenyl group or a 2-5C alkynyl group; R2 is a 1-5C alkyl group, a 2-5C alkenyl group or a 2-5C alkynyl group; n1 is an integral number of 1-4, and when n1 is 2 or more, R1 may be the same or different from each other; and n2 is an integral number of 1-4, and when n2 is 2 or more, R2 may be the same or different from each other. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2018,JPOandINPIT