
TY  - JOUR
A1  - Byrne, LT 
A1  - Sasse, JM 
A1  - Skelton, BW 
A1  - Suksamrarn, A 
A1  - White, AH 
T1  - The Minor Iridoid Glucosides of <I>Barleria lupulina</I>: Isolation, Crystal Structure and Plant Growth-Inhibiting Properties of 6-O-Acetylshanzhiside Methyl Ester
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1987
VL  - 40
IS  - 5
SP  - 785
EP  - 794
KW  - 
UR  - https://doi.org/10.1071/CH9870785 
N2  - The minor iridoid  glucosides present in the aerial parts of Barleria lupulina Lindl. ( Acanthaceae ) have been identified as ipolamiidoside (7) and the new compound 6-O-acetylshanzhiside methyl ester (3). The structure of (3) was determined by spectroscopic and chemical methods, and was confirmed by a single-crystal X-ray structure determination. Crystals of (3) are orthorhombic P212121, a 43.75(1), b 8.151(3), c 5.695(2) Å, Z 4. The crystal structure was determined at 295 K from diffractometer data [I528 reflections with I > 3&#963;(I)] and refined to a residual of 0.043. Shanzhiside methyl ester (1) and its 6-Oacetyl (3), 8-Oacetyl (2) and 6,8-O,O-diacetyl (4) derivatives, all of which occur in Barleria lupulina, have been found to inhibit the growth of wheat embryos. 
ER  -

