| 摘要 |
The present invention relates to a method of producing a compound represented by the formula [I] or a salt thereof, which comprises reacting a compound represented by the formula [II] or a salt thereof with a compound represented by the formula [III] or a salt thereof, in the presence of a base, in alcohol, and provides a production method of an O-substituted tyrosine compound, which is superior in productivity, versatility and safety, and economically and industrially useful: wherein each symbol is as defined in the specification.
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