試題詳解

1. What is the correct IUPAC name for the following compound?
 
(A) (2R,5R)-5-chloro-2-methylcycloheptan-1-one
(B) (2S,5R)-5-chloro-2-methylcycloheptan-1-one
(C) (2R,5R)-5-chloro-2-methylcyclohexan-1-one
(D) (1R,5R)-1-chloro-5-methylcycloheptan-3-one
(E) (1R,4R)-4-chloro-1-methylcycloheptan-7-one