Complete NMR Assignment of MogrosidesII A2, II E andIII A1Isolated from Luo Han Guo

Indra Prakasha , SangphyoHonga , Cynthia Bundersa , Gil Maa , Krishna P. Devkotab , Romila D.Charanb , Jim Callahanb , Tara M. Snyderb , and Catherine Ramirezb

Abstract  
?NMR analysis allowed complete assignments of three known mogrol glycosides, Mogroside IIA2 (1), II E (2)and IIIA1 (3), isolated from the extracts of Luo Han Guo. Herein, complete 1H and 13C NMR assignmentsof all threemogrosidesare described based on NMR experiments (1H NMR, 13C NMR, COSY, HSQC-DEPT, HMBC, NOESY and 1DTOCSY) and mass spectral data.

 Mogroside IIA2, II E and IIIA1 was Luo Han Guo extract
(10 g) purchased from Chengdu Biopurify Phytochemicals, China.