Docking score (kcal mol⁻¹) of synthesized xanthene derivatives (3a–3t) and the reference ligand (4-amino-furo[2,3-d] pyrimidine) against VEGFR-2 enzyme by molecular docking study.

Compound code	Docking score
3a	−5.08
3b	−6.24
3c	−6.12
3d	−6.02
3e	−6.52
3f	−4.80
3g	−6.01
3h	−5.28
3i	−6.34
3j	−5.80
3k	−5.12
3l	−6.10
3m	−6.20
3n	−5.94
3o	−5.20
3p	−6.80
3q	−5.80
3r	−6.05
3s	−5.40
3t	−6.99
Reference ligand −13.11