You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 21-[(2-chloro-1,3-thiazol-4-yl)methyl]-16,17-dimethoxy-5,7-dioxa-13-azoniapentacyclo[11.8.0.02,10.04,8.015,20]henicosa-1(21),2,4(8),9,15(20),16,18-heptaen-14-one using the IUPAC nomenclature.
user
C24H20ClN2O5S+
assistant