Task: Please give me a SMILES based on the description below.
Description: The molecule is 2-Methyl-3-oxopropanoate with S configuration at the chiral centre. It is a conjugate base of a (S)-methylmalonaldehydic acid. It is an enantiomer of a (R)-methylmalonate semialdehyde.
Result: C[C@@H](C=O)C(=O)[O-]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
C[C@@H](C=O)C(=O)[O-]
(2S)-2-methyl-3-oxopropanoate
The molecule is 2-Methyl-3-oxopropanoate with S configuration at the chiral centre. It is a conjugate base of a (S)-methylmalonaldehydic acid. It is an enantiomer of a (R)-methylmalonate semialdehyde.