Grayanoside C, a new diterpene glucoside from Leucothoe grayana

Sakakibara, Jinsaku; Shirai, Naohiro; Kaiya, Toyo; Iitaka, Yōichi

doi:10.1016/0031-9422(80)80203-2

Cited by 10 publications

(24 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Independent two-tailed Student's t-tests were performed. Table 1) showed great similarity to those of the glucose part of known diterpenoid glucosides [12], confirming that 1 possessed a glucose unit. Additionally, the 1 H-NMR spectrum of 1 showed the signals for three tertiary methyls (d = 1.74, 1.53, 1.18, each 3H, s) an olefinic methylene (d = 5.16, 5.06, each 1H, s), and three oxygenated methines (d = 4.16, 4.57, 4.44, each 1H).…”

Section: Lymphocyte Proliferation Testmentioning

confidence: 60%

See 1 more Smart Citation

Diterpenoid and Phenolic Glycosides from the Roots ofRhododendron molle

Bao

Wang²,

Cheng³

et al. 2003

Planta med

View full text Add to dashboard Cite

Two new grayanane diterpenoid glucosides, rhodomosides A (1), B (2) and two new phenolic glycosides 3, 4 together with a known glucosyringic acid (5) were isolated from the roots of Rhododendron molle G. Don (Ericaceae). Their structures were elucidated on the basis of spectral analysis. Compounds 3, 4 and 5 were found to inhibit the proliferation of murine B lymphocytes in vitro, while compound 3 also showed stimulatory activity on the proliferation of murine T lymphocytes in vitro.

show abstract

Section: Lymphocyte Proliferation Testmentioning

confidence: 60%

“…Leucothoe grayana [12], [17], Pieris japonica, [18], and Pieris formosa [13], [19], [20]. This is the first report of the two grayanane diterpenoid glucosides 1 and 2 from the plant Rhododendron molle.…”

Section: Grayanane Diterpenoid Glucosides Have Been Reported Frommentioning

confidence: 80%

Diterpenoid and Phenolic Glycosides from the Roots ofRhododendron molle

Bao

Wang²,

Cheng³

et al. 2003

Planta med

View full text Add to dashboard Cite

show abstract

“…The known compounds micranthanoside F (16), 13 grayanotoxin XVIII 17, 19 pierisformosin A (18), 20 6-deoxy-1-epigrayanotoxin XVII (19), 18 grayanotoxin IV 20, 21 grayanoside C (21), 22 grayanotoxin II (22), 23 grayanoside B (23), 19 micranthanosides C (24) and A (25), 13 rhodomicranoside F (26), 14 grayanotoxins I (27), 21 III 28, 24 VII 29, 25 IX 30, 26 and VIII (31), 26 19-sophorosyl kaurenoate (32), 27 kalmanol (33), 28 18446 | RSC Adv., 2019, 9,[18439][18440][18441][18442][18443][18444][18445][18446][18447][18448][18449][18450] This journal is © The Royal Society of Chemistry 2019…”

Section: Rsc Advances Papermentioning

confidence: 99%

Micranthanosides I and II, two novel 1,10-secograyanane diterpenoids and their antinociceptive analogues from the leaves and twigs of Rhododendron micranthum

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The glycosidic linkage was shown to be β based on the magnitude of the coupling constant of the anomeric proton (J ≈ 8.0 Hz). [13] The assignments of all these protons in compound 1 and their connectivity to adjacent protons and carbons were determined from the 2D 1 H-1 H COSY and HMQC results. The positions of the glucose moiety, and the butan-2-one group within the aglycone, were deduced from HMBC experiments.…”

mentioning

confidence: 99%

“…1 H, and13 C NMR spectral data of compound 1. was determined by DEPT experiments (s=quaternary, d=methine, t=methylene, q=methyl). a: Not reported.…”

mentioning

confidence: 99%