Eurycomanone and eurycomanol, quassinoids from the roots of Eurycoma longifolia

The semiempirical derivation of ¹³C nuclear magnetic resonance chemical shifts. Hydrocarbons, alcohols, amines, ketones, and olefins

Helmut Beierbeck, John K. Saunders, John W. ApSimon · Canadian Journal of Chemistry · 1977 · 128 citations · Full text

Natural Sciences, Chemistry, Computational Chemistry +14

A reinterpretation of beta, gamma, and delta substituent effects on ¹³C chemical shifts

Helmut Beierbeck, John K. Saunders · Canadian Journal of Chemistry · 1976 · 104 citations

Natural Sciences, Biochemistry, Chemistry +8

Carbon-13 nuclear magnetic resonance spectroscopy of naturally occurring substances. XXXI. Carbon-13 nuclear magnetic resonance spectral analysis of quassinoid bitter principles

Judith Polonsky, Zoia Baskévitch, Hugo E. Gottlieb et al. · The Journal of Organic Chemistry · 1975 · 66 citations

Natural Sciences, Chemistry, Analytical Chemistry +6

Tumor inhibitors. 101. Dehydroailanthinone, a new antileukemic quassinoid from Pierreodendron kerstingii

S. Morris Kupchan, John A. Lacadie · The Journal of Organic Chemistry · 1975 · 48 citations

Medicine, Medicinal Chemistry, Pharmacology +7

Constituents of Eurycoma longifolia

LE‐VAN‐THOI LE‐VAN‐THOI, NGUYEN‐NGOC‐SUONG NGUYEN‐NGOC‐SUONG · The Journal of Organic Chemistry · 1970 · 32 citations

Life Sciences, Botany, Chemistry +5