-
number of
whorls contained within a flower. The most
common case is the
pentacyclic flower,
which contains five whorls: a calyx, a corolla, two
whorls of...
-
Oleanolic acid or
oleanic acid is a
naturally occurring pentacyclic triterpenoid related to
betulinic acid. It is
widely distributed in food and plants...
- Benzo[a]pyrene, a
pentacyclic compound both
natural and man-made...
- (ursane skeleton), β-amyrin (oleanane skeleton), and δ-amyrin. Each is a
pentacyclic triterpenol with the
chemical formula C30H50O. They are
widely distributed...
-
broadly divided according to the
number of
rings present. In
general pentacyclic structures (5 rings) tend to dominate.
Squalene is
biosynthesized through...
-
alkaloids related to mitragynine,
which is a
tetracyclic relative of the
pentacyclic indole alkaloids,
yohimbine and voacangine. In particular, mitragynine...
- C20H12.
Structurally speaking, the
colorless isomers of
benzopyrene are
pentacyclic hydrocarbons and are
fusion products of
pyrene and a
phenylene group...
- (INN, BAN; also
known as
glycyrrhetinic acid or
glycyrrhetic acid) is a
pentacyclic triterpenoid derivative of the beta-amyrin type
obtained from the hydrolysis...
- an
unsaturated five-member
heterocycle containing a
sulfur atom in a
pentacyclic ring
fused to the β-lactam ring.
Penems do not
occur naturally; all are...
- to as urson, prunol, malol, or 3β-hydroxyurs-12-en-28-oic acid), is a
pentacyclic triterpenoid identified in the
epicuticular waxes of
apples as early...
