(S)-5-Oxopyrrolidine-2-carboxylic acid 18-henicosenyl ester
(S)-5-Oxopyrrolidine-2-carboxylic acid 18-henicosenyl ester ??
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(S)-5-Oxopyrrolidine-2-carboxylic acid 18-henicosenyl ester ?? ??
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