Table 1.

First generation of CTD ligands 1 – 16. The propenyl scaffold 2 was used as a E/Z mixture after checking that the natural compound 1 and E/Z-1 had a comparable effect on the protein activity.

	2 R″ = H		3 R″ = H
	R″		R″
1	α-L-Rha	4	α-L-Rha
5	β-D-Glc	6	β-D-Glc
7	β-L-Glc	8	β-L-Glc
9	α-D-Man	10	α-D-Man
11	β-D-Gal	12	β-D-Gal
13	β-L-Gal	14	β-L-Gal
15	β-L-Fuc	16	β-L-Fuc