A triterpene and a depside from Parmotrema austrocetratum Elix and J. Johnst

• Main Authors: Ragasa, Consolacion Y., Tan, Maria Carmen S., Linis, Virgilio C., Shen, Chien Chang
• Format: text
• Published: Animo Repository 2018
• Subjects: Parmeliaceae > Analysis; Depsides; Chemistry
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/2016
• Institution: De La Salle University

Introduction: Parmotrema austrocetratum Elix and J. Johnst. (syn. Rimelia austrocetrata Elix and J. Johnst.) which belongs to a large genus of lichenized fungi, Parmotrema Massalongo under family Parmeliaceae was investigated for its chemical constituents. Methods: The compounds were isolated by silica gel chromatography and their chemical structures were elucidated by NMR spectroscopy. Results: Chemical investigation of the dichloromethane extract of Parmotrema austrocetratum Elix and J. Johnst. has led to the isolation of zeorin (1) and atranorin (2). Conclusion: P. austrocetratum shares similar chemical characteristic with other Parmotrema species which afforded atranorin. This work highlights the frst reported isolation of 1 from P. austrocetratum and the genus Parmotrema. © 2018 Phcog.Net.