Table 1. R Groups of the Compounds 5a–5v.

compounds	R	compounds	R	compounds	R
5a	o-I Ph	5i	o-CF3 Ph	5q	p-C(CH3)3 Ph
5b	2,4-OH Ph	5j	o-NO2 Ph	5r	Ph
5c	o-OH Ph	5k	o-Cl Ph	5s	CH3
5d	p-OCH3 Ph	5l	m-Cl Ph	5t	CH2 Ph
5e	o-Br Ph	5m	p-Cl Ph	5u	CH2CN
5f	p-Br Ph	5n	p-CH3 Ph	5v	α-furyl
5g	p-F Ph	5o	o-CH3 Ph
5h	o-F Ph	5p	p-CH2OH Ph