What are the steps required to synthesize Oliceridine (N-[(3-methoxythiophen-2-yl)methyl] ({2- [(9R)-9-(pyridin-2-yl)-6-oxaspiro [4.5]decan-9- yl]ethyl{time} )amine fumarate)?
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Here are the steps for synthesizing Oliceridine (N-[(3-methoxythiophen-2-yl)methyl] ({2- [(9R)-9-(pyridin-2-yl)-6-oxaspiro [4.5]decan-9- yl]ethyl{time} )amine fumarate):