Opiates have the following general structure.
The correct representation of $R^1$ and $R^2$ for codeine $(X)$ and heroin $(Y)$ is

• Correct answer
  A

  
  
• B

  
  
  
• C

  
  
• D

  
  

Solution

Codeine $(x)$ is $R_1=\mathrm{OCH}_3$ (Ethoxy group) $R_2=\mathrm{OH}$ (Hydroxy group) Heroin $(y)$ is $$ \begin{aligned} & R^2=\text { OAc }(\text { Acetoxy }) \\ & R^2=\text { OAc }(\text { Acetoxy }) \end{aligned} $$

Hence, the correct answer is option: 'A'.