4-Cyanophenyl-2-hydrazinylthiazole species (3) prepared in this study.

(3)	R2	R3	Yield (%)	(3)	R2	R3	Yield (%)
a	H		69	p	H		70
b	H		79	q	H		78
c	Me		70	r	H		71
d	H		67	s	H		76
e	Me		70	t	H		73
f	H		73	u	H		74
g	H		78	v	H		68
h	H		70	w	H		72
i	H		75	x	H		74
j	H		72	y	H		77
k	H		65	z	H		78
l	H		71	a′	H		67
m	H		66	b′	H		73
n	H		68	c′	H		75
o	H		75	d′	H		69