Oc1cc(O)c2c(c1)OC(c1ccc(O)c(O)c1)C(O)C2
O=C(O[C@@H]1Cc2c(O)cc(O)cc2O[C@@H]1c1cc(O)c(O)c(O)c1)c1cc(O)c(O)c(O)c1
CCCCCCCCCCCCCCCC(=O)Oc1c(O)ccc(C2Oc3cc(O)cc(O)c3CC2OC(=O)c2cc(O)c(O)c(O)c2)c1O
It is well known that Catecin and its derivatives are good inhibitor to viruses.