*Corresponding Author Address: Dr. Mohammed Ali, Phytochemistry Research Laboratory, Faculty of Pharmacy, Jamia Hamdard, New
Delhi-110 062, India; E-mail: maliphyto@gmail.com
Journal of Pharmaceutical and Biological Sciences
ISSN: 2320-1924; CODEN: JPBSEV
Published by Atom and Cell Publishers © All Rights Reserved
Available online at: http://www.jpabs.org/
Original Article
Aliphatic alcohols, alkylated aromatic and triterpenic constituents from the aerial parts
of Rhus chinensis Mill.
Mohammed Ali
1
*, Shahnaz Sultana
1,2
and Showkat Rasool Mir
1
1
Phytochemistry Research Laboratory, Faculty of Pharmacy, Jamia Hamdard, New Delhi-
110 062, India.
2
College of Pharmacy, Jazan University, Jazan, Saudi Arabia
Received: 14-11-2016 / Revised Accepted: 27-12-2016 / Published: 01-01-2017
ABSTRACT
Rhus chinensis Mill. (Anacardiaceae), occurs as a deciduous tree in India, China, Korea, Japan and south
eastern Asia. Its leaf decoction is used to treat haemoptysis, inflammations, laryngitis, skin rashes, snake bite,
stomach-ache and traumatic fractures. The fruits and seeds are taken to relieve coughs, diarrhea, dysentery,
fevers, jaundice, malaria, rheumatism, stomachache, indigestion, intestinal worms, skin diseases, vomiting and
as an antitoxin. The powdered aerial parts of R. chinensis (1 kg) were extracted with methanol in a Soxhlet
apparatus. The extract was concentrated in vacuum to yield a brown semisolid mass (121 g). It was dissolved in
minimum amount of methanol to adsorb on silica gel for column for preparation of a slurry. The slurry was
dried in air and subjected to silica gel column loaded in petroleum ether. The column was eluted with petroleum
ether, chloroform and methanol in order of increasing polarity to isolate 1-heneicosanol (1), n-octacosan-9α-ol
(2), benzyloxyhexadecane (3), 2-n-hexadecanyl benzoic acid (4), α-amyrin (5), 2β,3β,22β-trihydroxylanostan-
23β,25-olide (rhuslanostanolide, 6), 12-dehydrobetulinic acid 3-O-β-D- glucopyranoside (7) and oleanolic acid
3-O-β-D-glucopyranoside (8). The structures of all the isolated phytoconstituents have been established on the
basis of spectral data analysis and chemical reactions.
Keywords: Rhus chinensis, aerial parts, chemical constituents, isolation, characterization.
INTRODUCTION
Rhus chinensis Mill. syn. R. osbeckii Carriere, R.
semialata Murray (Anacardiaceae), occurs as a
deciduous tree in India, China, Korea, Japan and
south eastern Asia. It is found in the outer
Himalayan ranges at an altitude of 1,000–23,00 m,
the hills of Assam, Khasia, Naga and Sikkim in
India, upper Burma, China and Japan
[1-4]
. Its leaf
decoction is taken to treat haemoptysis,
inflammations, laryngitis, skin rashes, snake bite,
stomach-ache and traumatic fractures. The fruits
and seeds are used to relieve coughs, diarrhea,
dysentery, fevers, jaundice, malaria, rheumatism,
stomachache, indigestion, intestinal worms, skin
diseases, vomiting and as an antitoxin
[5-7]
. R.
chinensis compounds possess strong antiviral,
antibacterial, anticancer, hepatoprotective,
antidiarrheal and antioxidant activities
[7]
. The fruits
contained β-sitosterol, morolic acid, 1-O-
heptatriacontanoyl glycerol, α-monpalmitin,
palmitic, protocatechuic and gallic acids and
methyl, ethyl and propyl gallates
[8]
. Hexadecanoic
acid, phytol and heptacosane were present in leaf
essential oils of different location. N-Tetradecane
(12.8%) was detected in Khaili sample of China
[9]
.
The leaves possessed quercetin, its 3-rhamnoside,
hyperoside, quercetin and kaempferol
[10,11]
. This
paper describes isolation and characterization of
chemical constituents from the aerial parts of R.
chinensis.
MATERIALS AND METHODS
General procedure: Melting points were
determined on a Perfit apparatus without
correction. The infrared (IR) spectra were
measured in KBr pellet on a Bio‑Rad Fourier
transform‑IR spectrometer (Spectra Lab Scientific
Inc., Ontario, Canada). Ultraviolet (UV) spectra
were obtained in methanol with a Lambda Bio 20
spectrometer (Perkin‑Elmer, Rotkreuz,