A concise synthesis and antimicrobial activities of 3-polyamino-23,24-bisnorcholanes as steroid-polyamine conjugates
Hong-Seok Kim1, Sharaf N Khan, Jyoti R Jadhav
1Department of Applied Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea. kimhs@knu.ac.kr
Abstract:
A series of steroid-polyamine conjugates were synthesized and evaluated for their antimicrobial activity. This study was focused on the effect of stereochemistry at the C-3 and C-5 of steroids and types of polyamine at C-3 on activity against various human pathogens. All the conjugates exhibited strong antimicrobial activities against Gram-positive strains. Compound 18 was found to be the most potent in these series with a MIC value as low as 1 μg/mL against the bacterium Staphylococcus aureus ATCC6538P.
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