MCQ
An amino acid may be represented by general formula $\begin{matrix}
R\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\, \\
{{H}_{2}}N-CH-COOH \\
\end{matrix}$ If $R = -CH_2C_6H_5$ then it is phenylalanine $(Phe)$ and if $R = CH_3$ then it is alanine $(Ala)$. Find the sequence of reagents from those given below to synthesize $Phe- Ala$
R\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\, \\
{{H}_{2}}N-CH-COOH \\
\end{matrix}$ If $R = -CH_2C_6H_5$ then it is phenylalanine $(Phe)$ and if $R = CH_3$ then it is alanine $(Ala)$. Find the sequence of reagents from those given below to synthesize $Phe- Ala$
$(1)$ $\begin{matrix}
C{{H}_{3}} \\
|\,\,\,\,\,\, \\
ZNH\,C\,HC{{O}_{2}}H \\
\end{matrix}$ $(2)$ $\begin{matrix}
C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
{{H}_{2}}N\,C\,HC{{O}_{2}}C{{H}_{2}}{{C}_{6}}{{H}_{5}} \\
\end{matrix}$
$(3)$ $\begin{matrix}
\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}}{{C}_{6}}{{H}_{5}} \\
|\,\,\,\,\, \\
ZNH\,C\,HC{{O}_{2}}H \\
\end{matrix}$ $(4)$ $\begin{matrix}
C{{H}_{2}}{{C}_{6}}{{H}_{5}}\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
{{H}_{2}}N\,CHC{{O}_{2}}C{{H}_{2}}{{C}_{6}}{{H}_{5}} \\
\end{matrix}$
- A$1$ and $2$
- ✓$1$ and $4$
- C$2$ and $3$
- D$3$ and $4$