Saquinavir (trade name Incirase) belongs to a class of drugs called protease inhibitors, which are used to treat HIV. Locate all the stereogenic centers in the drug saquinavir.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.