Table 5.

Chemical structures and yields obtained via the sequential MCR synthesis of 14a–14f.

-R1	-R2	Compound	Time a (h)	Yield b (%)
	H	14a	0.5	80
	H	14b	0.5	96
	H	14c	0.5	89
	H	14d	0.5	88
		14e	0.5	87
		14f	0.5	86

^a Time of the conversion of 13 into the corresponding thioureas (step 1); ^b Isolated yield.