Regex for extracting operators not in parentheses and double quotes

I am currently using a regex to find all the operators which are not in double quotes as:

(?<operator> [A-Z]+ (?=([^\"]*\"[^\"]*\")*[^\"]*$))

It is working fine as it matches one " OR " and one " AND " in the following expression.

method(ARG,"No AND Yes OR other") OR method(ARG,ARG) AND method(ARG,ARG)

The problem is, when I use the following text with the above regex it will match the operators inside parenthesis also:

method(ARG,"No AND Yes OR other") OR (method(ARG,ARG) AND method(method(ARG),ARG))

I am expecting only one operator match in above string, which is " OR ". Which is not in a double quote and not in any parenthesis.

Please let me know what I need place in regex to not match the operators in parenthesis.

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