Vildagliptin is a recently released antidiabetic drug (J. Med. Chem. 2010, 7902) . How many elements of unsaturation are in Vildagliptin? 
Definitions:
Benjamin Lee Whorf
An American linguist and fire prevention engineer known for his ideas on linguistic relativity, the hypothesis that the structure of a language affects its speakers' world view or cognition.
Theorist
An individual specializing in the development of theories, often within a specific domain such as science or philosophy.
Bilingualism
The ability of an individual to use two languages effectively, often characterized by fluency in speaking, reading, and writing in both languages.
More Than One Language
The ability or practice of a person to communicate effectively in multiple languages.
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