An<unk>  is one in a class of chemical compounds with the general formula R1R2CNOH, where R1 is an organic side chain and R2 is either hydrogen, forming an aldoxime, or another organic group, forming a ketoxime.<unk> s can be formed by the action of hydroxylamine on aldehydes or ketones.
The term<unk>  dates to the 19th century, a condensation of the words oxygen and imide.<unk> s exist as two stereoisomers: a syn isomer and an anti isomer. Aldoximes, except for aromatic aldoximes, exist only as a syn isomer, while ketoximes can be separated almost completely and obtained as a syn isomer and an anti isomer.
Oxime
Clindamycin phosphate 
Cefazolin sodium
Enoxacin
Oxacillin
Piperacillin
Cefotaxime sodium
Piperacillin sodium