Total Synthesis of Hemerocallisamine I Paved by Gram-Scale Synthesis of (2S,4S)-4-Hydroxyglutamic Acid Lactone

Author:

Pinčeková Lucia1,Jančiová Eva1,Berkeš Dušan1ORCID,Gyepes Róbert2ORCID,Kolarovič Andrej3ORCID,Caletková Oľga1

Affiliation:

1. Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

2. Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic

3. Department of Chemistry, Faculty of Education, Trnava University, Priemyselná 4, 918 43 Trnava, Slovakia

Abstract

Total synthesis of the 2-formylpyrrole alkaloid hemerocallisamine I is presented, both in racemic and enantiopure form. Our synthetic strategy involves (2S,4S)-4-hydroxyglutamic acid lactone as the key intermediate. Starting from an achiral substrate, the target stereogenic centers were introduced by means of crystallization-induced diastereomer transformation (CIDT) in a highly stereoselective fashion. A Maillard-type condensation was crucial to constructing the desired pyrrolic scaffold.

Funder

Slovak Research and Development Agency

Scientific Grant Agency of the Slovak Republic

Publisher

MDPI AG

Subject

Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science

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5. Matraszek-Gawron, R., Chwil, M., Terlecka, P., and Skoczylas, M.M. (2019). Recent Studies on Anti-Depressant Bioactive Substances in Selected Species from the Genera Hemerocallis and Gladiolus: A Systematic Review. Pharmaceuticals, 12.

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