Rosellin A and B, two red diketopiperazine alkaloids from the mushroom Mycena rosella. Issue 38 (20th September 2018)

• Record Type: Journal Article
• Authors: Lohmann, Julia S.; von Nussbaum, Monika; Brandt, Wolfgang; Mülbradt, Julia; Steglich, Wolfgang; Spiteller, Peter
• Is Part Of: Tetrahedron. Volume 74:Issue 38(2018)
• Page Start: 5113
• Page End: 5118
• Publication Date: 2018-09-20
• Subjects: Rosellin A -- Natural product -- Mushroom pigment -- 2, 5-Diketopiperazine -- Mycena -- Structure elucidation; Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1016/j.tet.2018.06.049
• Languages: English
• ISSNs: 0040-4020

Abstract

Abstract: Rosellin A and B, two red diketopiperazine alkaloids with unprecedented structures, have been isolated from the fruiting bodies of the mushroom Mycena rosella . The structures of the rosellins were mainly deduced from their 2D NMR and HRMS (ESI) spectra. Their absolute configuration was determined by comparison of the CD spectra of the rosellins with the corresponding CD spectra obtained by quantum chemical calculations. Root exposure to rosellin A led to bleaching of the leaves of Lepidium sativum plants. Graphical abstract: Image 1