What is the nucleophile in the following reaction? 
Definitions:
Extrinsic Motivation
Motivation driven by external rewards, such as money, fame, grades, or praise.
Mundane Tasks
Routine, everyday activities that can be tedious but are necessary for the smooth operation of daily life or work.
Extrinsic Qualities
Characteristics or attributes that are not inherent or essential but are imposed from the outside or by external factors.
Intrinsic Qualities
The inherent characteristics, values, or virtues of a person or thing that are not dependent on external factors.
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