You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 16-chloro-14,14-dimethyl-9-oxa-14-silapentacyclo[11.7.0.02,10.03,8.015,20]icosa-1(13),2(10),3,5,7,11,15(20),16,18-nonaene .
user
C20H15ClOSi
assistant