File S1 - The Specific Cleavage of Lactone Linkage to Open-Loop in Cyclic Lipopeptide during Negative ESI Tandem Mass Spectrometry: The Hydrogen Bond Interaction Effect of 4-Ethyl Guaiacol

Supporting figures and table. Figure S1. The MS3 fragmentation of 1016 Da ions of non-covalent complex (a) and lichenysins G (b). Figure S2. 1H-1H NOESY spectra (400 MHz) of non-covalent complex (1∶1 in molar ration)in DMSO. Table S1, The calculation of non-covalent complex and lichenysins G with ONIOM level of theory. (DOC)