Compounds and compositions useful as antifungal and antimycobacterial
申请人:The University of Mississippi
公开号:US05227383A1
公开(公告)日:1993-07-13
New analogs of sampangine and cleistopholine, compositions and methods of preparation thereof, method of treating fungal and mycobacterial infections. The compounds have the general formula: ##STR1## where the R.sub.1, R.sub.2, and R.sub.5 groups are defined herein.
Copyrine alkaloids: synthesis, spectroscopic characterization, and antimycotic/antimycobacterial activity of A- and B-ring-functionalized sampangines
作者:John R. Peterson、Jordan K. Zjawiony、Shihchih Liu、Charles D. Hufford、Alice M. Clark、Robin D. Rogers
DOI:10.1021/jm00100a012
日期:1992.10
Several A- and B-ring-substituted sampangines were synthesized and evaluated for antifungal and antimycobacterial activity against AIDS-related opportunistic infection pathogens. Electrophilic halogenation provided a channel for structural elaboration of the sampangine B-ring at position 4, while the synthesis of A-ring 3-substituted sampangines and benzo[4,5]sampangine (24) were achieved from the corresponding functionalized cleistopholines. Two-dimensional NMR spectroscopy was used to rigorously characterize the A- and B-ring substituent patterns. Structure-activity relationship studies revealed the activity of the sampangines was enhanced by the presence of a substituent at position 3 or by a 4,5-benzo group.
SAMPANGINE DERIVATIVES USEFUL AS ANTIFUNGAL AND ANTIMYCOBACTERIAL AGENTS
申请人:THE UNIVERSITY OF MISSISSIPPI
公开号:EP0588796B1
公开(公告)日:2001-04-04
NEW COMPOUNDS AND COMPOSITIONS USEFUL AS ANTIFUNGAL AND ANTIMYCOBACTERIAL AGENTS
申请人:THE UNIVERSITY OF MISSISSIPPI, Research Institute of Pharmaceutical