Question

Crixivan, a drug produced by Merck and Co., is widely used in the fight against AIDS (acquired immune deficiency syndrome). The structure of Crixivan is given below:
How many $3^{\circ }$ amine groups are present in the compound?

• A. Zero
• B. $1$
• C. $2$
• D. $3$

Answer 1

The correct option is C $2$

Two $3^o$ amine groups are present in the compound. These are marked with red rectangle in the figure. A tertiary amine is obtained when all three H atoms of ammonia are replaced with alkyl groups.