The effect of anthracene-based chalcone derivatives in the resazurin dye reduction assay mechanisms for the investigation of Gram-positive and Gram-negative bacterial and fungal infection
A novel series of anthracene-based chalcone derivatives were synthesized and evaluated in terms of their antibacterial and antifungal activities.
一系列基于蒽醌的查尔酮衍生物被合成并在抗菌和抗真菌活性方面进行评估。
Chalcone and its analogs as agents for the inhibition of angiogenesis and related disease states
申请人:——
公开号:US20020040029A1
公开(公告)日:2002-04-04
The present invention relates to chalcone and chalcone derivatives and analogs which are useful as angiogenesis inhibitors. The present compounds, which are inexpensive to synthesize, exhibit unexpectedly good activity as angiogenesis inhibitors. The present invention also relates to the use of chalcone and its analogs as antitumor/anticancer agents and to treat a number of conditions or disease states in which angiogenesis is a factor, including angiongenic skin diseases such as psoriasis, acne, rosacea, warts, eczema, hemangiomas, lymphangiogenesis, among numerous others, as well as chronic inflammatory disease such as arthritis.
Nineteen 1,3-bis(aryl)propane derivatives and six model compounds with a single chromophore were used to explore the chiral discrimination ability of cellulose derivatives, in particular cellulose triphenylcarbamate (CTC), in connection with the mode of interaction of these probe molecules with adsorbents. The interaction was evaluated by conformational analysis of the probe molecules and circular dichroism. Thc 1,3-bis(aryl)propanes with 9-anthryl moieties possessed a highly limited conformation owing to thc bulky substituent and hardly changed their shape on CTC as evidenced by CD spectra; thus, they may be regarded as ''rigid'' substrates. However, these ''rigid'' substrates were resolved quite effectively. On the other hand, those with 2-naphthyl moieties possessed a number of stable conformations and could change their shape in diastereomeric complexes on CTC; thus, they may be assumed as ''soft'' substrates, against which the chiral discrimination was inefficient. The present study revealed that the optical resolution may be interpreted at least partly in terms of the ''rigid'' and ''soft'' concept.
CHALCONE AND ITS ANALOGS AS AGENTS FOR THE INHIBITION OF ANGIOGENESIS AND RELATED DISEASE STATES
申请人:UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.