You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (6S,9R,12R)-6-[(2S)-butan-2-yl]-8,9-dimethyl-12-(1,3-thiazol-4-ylmethyl)-2-oxa-5,8,11,14-tetrazabicyclo[16.4.0]docosa-1(22),18,20-triene-7,10,13-trione into molecular formula.
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C27H39N5O4S
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