The invention relates to compounds, pharmaceutical compositions and methods useful for treating viral infection.
这项发明涉及用于治疗病毒感染的化合物、药物组合物和方法。
ANTIVIRAL COMPOUNDS
申请人:Arranz Plaza Esther
公开号:US20090149429A1
公开(公告)日:2009-06-11
The invention relates to compounds, pharmaceutical compositions and methods useful for treating viral infection.
该发明涉及用于治疗病毒感染的化合物、药物组合物和方法。
An asiatic acid derived trisulfamate acts as a nanomolar inhibitor of human carbonic anhydrase VA
作者:Toni C. Denner、Niels V. Heise、Immo Serbian、Andrea Angeli、Claudiu T. Supuran、René Csuk
DOI:10.1016/j.steroids.2024.109381
日期:2024.5
as representative triterpenoids for evaluation. The synthesis involved acetylation of parent triterpenoic acids –, followed by sequential reactions with oxalyl chloride and benzylamine, de-acetylation of the amides, and subsequent treatment with sodium hydride and sulfamoyl chloride, leading to the formation of final compounds –.
Preparation containing betulinic acid, obtained from a plant of the family Marcgraviaceae
申请人:UNIVERSITY OF OTTAWA
公开号:EP2567625A1
公开(公告)日:2013-03-13
Pharmaceutical compositions for preventing or treating anxiety, comprising betulinic acid or derivatives thereof are provided. Methods for preventing or treating anxiety with betulinic acid or derivatives thereof are also provided. The invention further provides betulinic-acid containing preparations of plants of the family Marcgraviaceae having anxiolytic activity and methods for making such extracts and using them to prevent or treat anxiety in a subject.
The betulinic acid-derived hydroxamates 5-18, the amides 19-24, and betulin-derived bis-carbamates 25-28 as well as the carbamates 31-40 and 44-48 were prepared and evaluated for their anti-proliferative activity in a photometric sulforhodamine B (SRB) assay against several human cancer cell lines and nonmalignant mouse fibroblasts (NIH 3T3). While for 3-O-acetyl hydroxamic acid 5 EC50 values as low as EC50 = 1.3 mu M were found, N,O-bis-alkyl substituted hydroxamates showed lowered cytotoxicity (EC50 = 16-20 mu M). In general, hydroxamic acid derivatives showed only reduced selectivity for tumor cells, except for allyl substituted compound 13 (EC50 = 5.9 mu M for A2780 human ovarian carcinoma cells and EC50 > 30 mu M for nonmalignant mouse fibroblasts). The cytotoxicity of betulinic acid derived amides 19-24 and of betulin derived bis-carbamates 25-28 was low, except for N-ethyl substituted 25. Hexyl substituted 39 showed EC50 = 5.6 mu M (518A2 cells) while for mouse fibroblasts EC50 > 30 was determined. (C) 2015 Elsevier Masson SAS. All rights reserved.