Table 1. Structures of Nitrofuryl- (1a–9a) and Nitrothienylazines (1b–9b)^a.

	X	R		X	R
1a	O	H	1b	S	H
2a	O	F	2b	S	F
3a	O	Cl	3b	S	Cl
4a	O	Br	4b	S	Br
5a	O	Me	5b	S	Me
6a	O	OMe	6b	S	OMe
7a	O	OBn	7b	S	OBn
8a	O	OH	8b	S	OH
9a	O	NO2	9b	S	NO2

^aMe: methyl (CH₃); OMe: methoxy (OCH₃); OBn: benzyloxy (OCH₂C₆H₅).