Asymmetric Synthesis of Four Stereoisomers of 2,2-Dimethyl-3-hydroxy-4-(1′-angeloyloxy)-6-acetylchromane from Ageratina grandifolia and Plausible Absolute Stereochemistry of the Natural Product

• Changmin Oh,
• Ji Hyeon Im,
• Munhyung Bae,
• Jong-Wha Jung

Affiliations

Changmin Oh

College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea

Ji Hyeon Im

Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, Republic of Korea

Munhyung Bae

College of Pharmacy, Gachon University, Incheon, Republic of Korea

Jong-Wha Jung

College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea