What is more preferred name when ester is present as junior functional group bis-carboxylic acid? (refer the image attached):
- to count carbon of ester and consider two branches on it (one oxo and other like methoxy).
- to consider whole ester group as branch.
(According to me answer by first method: 4-(formyloxy)-4-oxobutanoic acid and by second: 3-(formyloxycarbonyl)propanoic acid) please correct me if I'm wrong.