出典:Wiktionary
出典:『Wiktionary』 (2012/06/22 13:52 UTC 版)
clavam (複数形 clavams)
出典:Wikipedia
出典:『Wikipedia』 (2010/09/19 07:23 UTC 版)
A clavam is a molecule similar to a penam, but with an oxygen substituted for the sulfur. A clavam also distinguishes itself by carrying a different chemical shrubbery on the five-membered ring. Thus, they are also known as oxapenams.