The past two decades have witnessed remarkable growth of asymmetric organocatalysis,
which is now a firmly established synthetic tool, serving as a powerful platform for the …

Introduction: Phytochemicals have garnered much attention because they are useful in
managing several human diseases. Yohimbine is one such phytochemical with significant …

Covering: 2015 and 2016 The chemistry and biology of natural guanidines isolated from
microbial culture media, from marine invertebrates, as well as from terrestrial plants and …

Chiral guanidines have been widely used as Brønsted base catalysts and phase transfer
catalysts in enantioselective reactions. Due to their amendable structure and powerful …

Monoterpene indole alkaloids (MIAs) make up a highly bioactive class of metabolites
produced by a range of tropical and subtropical plants. The corynanthe-type MIAs are a …

We report a concise, enantioselective synthesis of the yohimbine alkaloids (−)-rauwolscine
and (−)-alloyohimbane. The key transformation involves a highly enantio-and …

Heteroarene‐tethered functionalized alkynes are multipotent synthons in organic chemistry.
This detailed Review described herein offers a thorough discussion of the metamorphosis of …

Stereoisomeric polycyclic natural products are important for drug discovery-based screening
campaigns, due to the close correlation of stereochemistry with diversified bioactivities …

Natural products are the great sources of drugs and leading compounds in drug discovery,
as it has been estimated that most of the current medicines are derived from natural …

An unprecedented sequential [3+ 3]/[3+ 3] annulation of allenoates and dienes catalyzed by
phosphine has been developed, which provides novel and facile access to highly …