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system
Name the molecular formula for the molecule established as (3S,3'S,4'R,6'S,8'R,8'aR)-5-[3-(carbamoylamino)prop-1-ynyl]-6'-[2-(2-hydroxyethoxy)phenyl]-1',2-dioxo-3',4'-diphenyl-N-prop-2-enylspiro[1H-indole-3,7'-4,6,8,8a-tetrahydro-3H-pyrrolo[2,1-c][1,4]oxazine]-8'-carboxamide using the IUPAC nomenclature.
user
C42H39N5O7
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