The present invention discloses an etomidate derivative of Formula 1, or a pharmaceutically acceptable salt, a polymorph, or a solvate thereof, a pharmaceutical composition and a kit comprising the same, as well as intermediates and methods for preparing the same, and use thereof. The etomidate derivative of the present invention not only has good anesthetic activity, rapid onset, and short duration of action, but also shows little inhibition to the secretion of corticosteroids in animals, and therefore has both favorable anesthetic effect and safety profiles.
