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 4-[[N'-[5-[2-[[4-[[3-(2,3-difluoro-4-methoxyphenyl)imidazo[1,2-a]pyrazin-8-yl]amino]-2-ethylbenzoyl]amino]ethylamino]-4-[(2-methylpropan-2-yl)oxycarbonylamino]-5-oxopentyl]-N-[(2-methylpropan-2-yl)oxycarbonyl]carbamimidoyl]-[(2-methylpropan-2-yl)oxycarbonyl]amino]butanoic acid .
user
C49H66F2N10O11
assistant