Smile:
c1(c2c(cc(c1O)O)C(=O)OCC1C(OC(=O)c3c2c(c(c(c3)O)O)O)C2C(C(O1)OC(=O)c1c(c(c(c(c1)O)O)O)Oc1c(c(cc(c1)C(=O)OC1C3C(C4C(O1)COC(=O)c1c(c5c(C(=O)O4)cc(c(c5O)O)O)c(c(c(c1)O)O)O)OC(=O)c1c(c4c(C(=O)O3)cc(c(c4O)O)O)c(c(c(c1)O)O)O)O)O)OC(=O)c1c(c(c(c(c1)O)O)O)c1c(C(=