Draw the major organic substitution product(s) for (2r,3s)-2-bromo-3-methylpentane reacting with the given nucleophile. indicate the stereochemistry, including h\'s, at each stereogenic center. omit any byproducts.

The final product of the reaction is (2S,3S)-2-ethoxy-3-methylpentane.

Explanation:

The given reaction undergoes  mechanism in which the nucleophile attacks the backside and it is substituted by the elimination of bromine.

Due to the backside attack of nucleophile , the inverse in stereo-chemistry is observed.

After the substitution of ethoxy group, the configuration is assigned according to the priority it shows clock wise direction(R) - configuration.

When hydrogen faces the front side , it results shows inverse configuration i.e, S- configuration.

The chemical reaction is as follows.

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