Abstract Background The leaves of Zizyphus spina-christi (L.) Willd contain several
compounds exhibiting different pharmacologic activities. However, studies on the cytotoxic …

One new ent‐kaurane diterpenoid, 11β, 16α‐dihydroxy‐ent‐kauran‐19‐oic acid (1),
together with eight known analogues 2–9 were isolated from the aerial parts of Wedelia …

Three new ent-kaurane diterpenes, 3 α-angeloyloxy-17-hydroxy-ent-kaur-15-en-19-oic acid
(1), 3 α-tigloyloxy-17-hydroxy-ent-kaur-15-en-19-oic acid (2) and 3 α-cinnamoyloxykaur-9 …

Detail chemical investigations on the stem bark of Mesua daphnifolia gave three
triterpenoids and four xanthones. They are friedelin (1), friedelan-1, 3-dione (2), lup-20 (29) …

Acetone: chloroform (1: 2) extract of the aerial parts of Euphorbia connata
Boiss.(Euphorbiaceae) was investigated for its diterpenoids. This led to the isolation of one …

Phytochemical analysis of Euphorbia gedrosiaca Rech. f., Aellen & Esfand., an Iranian
endemic spurge, afforded the isolation of four myrsinane types diterpene polyesters. Two …

A new tropane alkaloid 7β-acetoxy-6β-benzoyloxy-3α-hydroxytropane (1) was isolated from
the twigs of Erythroxylum macrocalyx Mart.(Erythroxylaceae), along with the known …

A dichloromethane–acetone extract of Euphorbia osyridea Bioss.(Syn. Euphorbia lateriflora
Schumach. & Thonn), a spurge endemic to Iran and West Africa, afforded three new …

In this research, a new triterpenoid, tirucalla-8, 24-diene-3β, 11β-diol-7-one (1), and eupha-
8, 24-diene-3β, 11β-diol-7-one (2), which was isolated from Euphorbia kansui for the first …

A new ent-kaurene diterpene, pseudoirroratin A (1), and a known diterpene, pseurata A,
were isolated from Isodon pseudo-irrorata. Compound 1 showed significant cytotoxicity …