Triterpenoids are accessible in several terrestrial plants as well as marine organisms,
including sponges, algae, fungi, and sea cucumbers are examples of marine creatures. So …

Lichens are natural products distributed in a variety of environments, including rocks, trees,
soil, human structures, forests, mountains, and even in deserts and polar regions. In their …

Two new hopan-type triterpenoids, namely tinctoric acid AB (1-2), were isolated from the
lichen Parmotrema tinctorum (Despr. ex Nyl.) Hale. Their structures were elucidated by …

Two new norhopane derivatives namely 3β, 6β, 22-trihydroxy-7β, 11α-di [(4-
hydroxybenzoyl) oxy]-21αH-24-norhopa-4 (23)-ene (1) and 3β, 6β, 22-trihydroxy-7β-[(4 …

Terpenes, polyketides, and tannins are valuable chemical classes that are famous for their
varied biological activities such as being antioxidant, anticancer, antibiotic, and …

Figure S3:(‒) HRESI-MS of compound 1(1 β-acetoxy-3 β-hydroxy-21α-hopan-29-oic
acid)........ 10 Figure S4: FT-IR of compound 1(1 β-acetoxy-3 β-hydroxy-21α-hopan-29-oic …

One new hopane-type triterpene, indicuen (1), along with eight known compounds (2–9)
were isolated from the n-hexane extract of the lichen Parmotrema indicum Hale. The …

Triterpenoids, an important group of secondary metabolites, are widely distributed naturally
in plants in a free form or in the form of glycosides or esters, including tetracyclic …

Cancer has become a key public health affliction worldwide. Recent studies have shown
that genetic factors cause only 5–10% of all human cancers, while the rest are caused by …

Natural products or traditional medicines play essential roles in therapeutic agents as well
as a resource for the discovery of new drugs. Lichen Dirinaria applanata and Lasia spinosa …