01681nas a2200229 4500008004100000245008200041210006900123260001800192300001200210490000700222520098500229653001401214653001701228653003001245653002601275653001101301100002801312700002601340700002401366700002201390856003901412 2018 eng d00aA Triterpene and a Depside from Parmotrema austrocetratum Elix and J. Johnst.0 aTriterpene and a Depside from Parmotrema austrocetratum Elix and cNovember 2018 as27-s290 v103 a

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 first reported isolation of 1 from P. austrocetratum and the genus Parmotrema.

10aAtranorin10aParmeliaceae10aParmotrema austrocetratum10aRimelia austrocetrata10aZeorin1 aRagasa, Consolacion, Y.1 aTan, Maria, Carmen S.1 aLinis, Virgilio, C.1 aShen, Chien-Chang uhttps://www.phcogj.com/article/751