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. 2020 Aug 22;85:153310. doi: 10.1016/j.phymed.2020.153310

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Fig 5 — Docking poses of caffeic acid derivatives with SARS-CoV-2 spike ectodomain (A) Hydrogen bonding interactions of khaınaosıde C, khaınaosıde B, calceolarioside B, calceolarioside C, calceolarioside D with amino acid residues of SARS-CoV-2 spike ectodomain (open state) (B) 2D view of interaction types of khaınaosıde C, khaınaosıde B, calceolarioside B, calceolarioside C, calceolarioside D with surrounding amino acids of SARS-CoV-2 spike ectodomain (open state).