In a continuing search for bioactive constituents from Korean medicinal plants,8−11 a MeOH extract of S. glandulosa twigs was investigated, and 12 new phenolic glycosides (1−12) were isolated, along with a previously known analogue (13). The structures of 1−13 were characterized by the use of NMR methods (1H and 13C NMR, 1 H−1 H COSY, HMQC, and
HMBC), chemical hydrolysis, and GC/MS. The absolute configuration of 13 was determined for the first time in this
study. All the isolates (1−13) were evaluated for their inhibitory effects on nitric oxide (NO) production in lipopolysasccharide (LPS)-activated BV-2 cells, a microglial cell line. Herein, the isolation and structural elucidation of compounds 1−13, along with their inhibitory effects on NO production of isolates (1−13), are reporte