Which of the following compounds is least soluble in water?
\begin{tabular}{lc}
\( \odot \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{~F} \) & \( \hat{v} \) \\
\hline\( \circ \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2} \) & \( \hat{v} \) \\
\hline\( \circ \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH} \) & \( \hat{v} \) \\
\( \circ \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NHCH}_{3} \) & \( \hat{v} \) \\
\( \circ \mathrm{CH}_{3} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3} \) & \( \hat{v} \)
\end{tabular}