How To Use five-membered In A Sentence
- It contains four oxazole and four thiazole rings and is representative of a broad class of pharmaceutically important natural products with five-membered heterocycles derived from peptide precursors.
- The anchored ferrocene is a sandwich complex: two flat, five-membered carbon rings are the ‘bread’, while an iron atom in the middle serves as the filling.
- Ozone attacks a carbon-carbon double bond, initially making an ozonide, a hair-raising five-membered ring that has three oxygens in a row.
- The natural antibiotic, cephalosporin C, loses on hydrolysis an acetyl group to give the more stable Cc molecule with the carboxyl group combined in a five-membered lactone ring. Nobel Lecture The X-Ray Analysis Of Complicated Molecules
