16-anhydro-b-D-Glucose (Levoglucosan) is an anhydrohexose that is the 16-anhydro-derivative of beta-D-glucopyranose. It is formed from the pyrolysis of carbohydrates such as starch and cellulose. Levoglucosan can also be utilized in the synthesis of chiral polymers such as unhydrolysable glucose polymers.

[Leu13]-Motilin (KW-5139) is a motilin analogue. [Leu13]-Motilin stimulates gastrointestinal motility in the rabbit. [Leu13]-Motilin causes concentration-dependent contractions of the gastric antrum, duodenum, jejunum, ileum and the descending colon in vitro.

Ac-[DTrp16] Endothelin-1 (16-21), human