Synthesis and biological activity of novel penem sulfoxides and sulfones
摘要:
The first stable penem sulfoxides 4a, 4b and the novel penem sulfone 6b were prepared. The rates of hydrolysis and the biological activities were examined. (C) 1997 Elsevier Science Ltd.
Synthesis and antibacterial activity of (1′R, 5R, 6R)-2-tert-butyl-6-(1′-hydroxyethyl)penem-3-carboxylic acid
摘要:
As with the oxapenems, the 2-tert-butyl substituents substantially increased the hydrolytic stability of penems. The corresponding penems 1 and 2 were prepared and found to be extremely stable compounds. 2 showed good in vitro activity against gram-positive bacteria. (C) 1997 Elsevier Science Ltd. All rights reserved.