Synthesis and Antibacterial Activities of Pleuromutilin Derivatives Containing Aryl Urea Groups
作者:Yuanyuan Zhang、Weiqing Yang、Keping Xu、Menglin Ma、Yuliang Wang
DOI:10.2174/1570180811310030005
日期:2013.1.1
A series of novel pleuromutilin derivatives containing aryl urea groups was synthesized and their antibacterial
activities were evaluated in vitro against S. aureus ATCC 26113, S.aureus SC, S. albus ATCC 8799 and P. aeruginosa
ATCC 27853. Most of compounds exhibited more potent activities than reference drug tiamulin against S. aureus ATCC
26113 and S. aureus SC. Especially, compounds 12f and 12h containing pyridyl urea group and compound 12j with
quinolinyl urea group showed excellent activity with the MIC value less than 0.001μg/ml against S. aureus SC.
The present invention provides a compound represented by the formula:
wherein R
1
is an acyl group, R
2
is a hydrocarbon group which may be substituted or the like, R
3
is a hydrocarbon group which may be substituted or the like, R
4
is a hydrocarbon group which may be substituted or the like, n is from 0 to 4, and X is an oxygen atom, a sulfur atom or the like, or a salt thereof. The invention also provides a compound which has a TGR23 antagonist activity and thus is useful for prevention and treatment of cancer.
The present invention provides a compound represented by the formula:
wherein R1 is an acyl group, R2 is a hydrocarbon group which may be substituted or the like, R3 is a hydrocarbon group which may be substituted or the like, R4 is a hydrocarbon group which may be substituted or the like, n is from 0 to 4, and X is an oxygen atom, a sulfur atom or the like, or a salt thereof. The invention also provides a compound which has a TGR23 antagonist activity and thus is useful for prevention and treatment of cancer.