# Naming of ester alkoxide

I'm trying to name the following compound:

I believe the carboxyl group has priority and should make up the parent name. I'm not sure how to name the alcohol derivative portion. My first thought is:

potassium ethyl 2-oxyacetate

or

potassium ethyl oxyacetate

I've seen that there is a compound without the alcohol derivative and ester side chain called glycolic acid, but I have seen no examples of this common name being used as part of an alkoxide salt.

What is the correct way of naming a compound like this?

However, anions are senior to esters. Therefore, the anion formed by subtracting a $\ce{H+}$ from the hydroxy group of ethyl hydroxyacetate is named as ethanolate. The ethanolate is substituted using the usual principles of substitutive nomenclature. The prefix ‘oxo’, denoting $\ce{=O}$, is used to indicate a carbonyl group when the group cannot be cited as suffix. The group $\ce{-O-CH2-CH3}$ is indicated by the prefix ‘ethoxy’. This leads to the systematic name 2-ethoxy-2-oxoethan-1-olate for the anion and potassium 2-ethoxy-2-oxoethan-1-olate for the salt.