. 2015 May 20;20(5):9229–9241. doi: 10.3390/molecules20059229

Table 1.

All compounds tested in this work ^a.

	R		R		R
1a ^b	H	6a ^b	3,5-OH	11a	3,5-OMe
2a ^b	3-OH	7a ^b	2,3,4-OH	12a	2,3,4-OMe
3a ^b	4-OH	8a	3-OMe	13a	4-(2)pyridinyl)
4a ^b	4-Cl	9a	4-OMe	14a	4-(4)NO₂benzyl
5a ^b	2,4-OH	10a	2,4-OMe
1b	H	6b ^c	3,5-OH	11b	3,5-OMe
2b	3-OH	7b	2,3,4-OH	12b	2,3,4-OMe
3b	4-OH	8b	3-OMe	13b	4-(2)pyridinyl)
4b	4-Cl	9b	4-OMe	14b ^c	4-(4)NO₂benzyl
5b	2,4-OH	10b	2,4-OMe
1c	H	10c	2,4-OMe	13c	4-(2)pyridinyl)
8c	3-Ome	11c	3,5-OMe		11
9c	4-Ome	12c	2,3,4-OMe		12

^a A total of 35 compounds were screened, seven commercially available ones purchased from Sigma-Aldrich Co. (St. Louis, MO, USA) ^b and 28 prepared by us. ^c Unpublished compounds; the corresponding structural elucidation data are presented in the Experimental Section. The other products are known compounds and were identified by comparison with authentic samples.