Desirable Compounds Not Yet Synthesised

Furanyl analogue:

SMILES: NC1=C2C(C=C(C3=CC=CC(S(=O)(N)=O)=C3)O2)=NC=N1 InChI=1S/C12H10N4O3S/c13-12-11-9(15-6-16-12)5-10(19-11)7-2-1-3-8(4-7)20(14,17)18/h1-6H,(H2,13,15,16)(H2,14,17,18)

Laboratory efforts are currently going towards producing the furanyl analogue of OSM-S-106 (image above) - Early discussion of synthetic chemistry, up-to-date Google Doc describing detailed synthetic progress.

Thieno[2,3‐c]pyridine analogue (proposed by @mfernflower)

NC=1N=CC=C2C1SC(=C2)C=2C=C(C=CC2)S(=O)(=O)N IPIRNZZMWQZXIW-UHFFFAOYSA-N

Other possible molecules of interest:

The below set of compounds were proposed by Mfernflower based on the similarity of the S3 hit to the natural product ca(r)boxamycin:

A series of "truncated" analogues lacking the sulfonamide were proposed by an joint effort between MFernflower and Tha:

In the course of predictive work performed by Vito Spadaveccio, a number of S3 analogues were predicted as binders for the putative target, CLK1.

...including the "inverted" thienopyrimidine in which the sulfur atom faces south rather than north.

Several compounds were suggested as a result of modeling studies with the potential kinase target PKA.