Chemistry 11 Spring 2009 Examination _3 ANSWER KEY

• exposé
• expression écrite

Chemistry 11 Spring 2009 Examination _3 ANSWER KEY 1. (46 pts. total) Tadalafil (sold under the trade name Cialis®), is an orally- administered prescription drug used to treat erectile dysfunction. N N O O N H H CH3 O O ether (actually, an 'acetal', but will be formally noted in Section 4) alkene amide 2o amine Answer the questions below relating to this drug: A. (4 pts.

• constitutional isomers with the molecular formula c3h9n
• trade name
• bond-line notation
• curved arrow notation
• lower boiling point
• cho ohh hho ohh ohh ch2oh
• carbon-carbon bond rotation
• identical diastereomer diastereomer enantiomer