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 1-[(E)-[4-[(4-tert-butylphenyl)methoxy]-3-methoxyphenyl]methylideneamino]-3-methylthiourea using the IUPAC nomenclature.
user
C21H27N3O2S
assistant