NOVEL DITERPENOIDS IMPARTING STRESS RESISTANCE TO PLANTS

WIPO Patent Application WO/2003/076375

A1

The invention provides compounds represented by the general formula: [wherein X is selected from the group consisting of hydroxyl, substituted hydroxyl, halogeno, mercapto and substituted mercapto; one of Y¹ and Y² is hydrogen or alkyl and the other is Z-W (wherein Z is a single bond or a divalent group formed by removing two hydrogen atoms from alkane or substituted alkane; and W is hydroxyl, substituted hydroxyl, aldehyde, carboxyl, or substituted carboxyl); and R¹ to R²⁴ are each independently selected from the group consisting of hydrogen, alkyl, and substituted alkyl]. The invention also provides a method for quantitative determination of the above compounds; compositions containing the same and imparting stress resistance; and compounds imparting stress resistance.

SEO SHIGEMI (JP)
OHASHI YUKO (JP)
SETO HIDEHARU (JP)
YOSHIDA SHIGEO (JP)

PCT/JP2003/002965

September 18, 2003

March 12, 2003

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NAT INST OF AGROBIO SCIENCES (JP)
RIKEN (JP)
SEO SHIGEMI (JP)
OHASHI YUKO (JP)
SETO HIDEHARU (JP)
YOSHIDA SHIGEO (JP)

A01N29/08; A01N31/06; A01N49/00; C07C29/147; C07C35/36; (IPC1-7): C07C35/36; A01G7/00; A01H3/00; A01N31/06; C07C29/147; G01N30/88

WO1998047362A1

1998-10-29

JPH04342507A

1992-11-30

OSHIMA Y. ET AL.: "Sterebins E, F, G and H, diterpenoids of Stevia Rebaudiana leaves", PHYTOCHEMISTRY, vol. 27, no. 2, 1988, pages 624 - 626, XP002970026
LI YEN-CHENG ET AL.: "Labdane-type diterpenoids from the Wood of Cunninghamia konishii", CHEM. PHARM. BULL., vol. 50, no. 4, April 2002 (2002-04-01), pages 498 - 500, XP002970027

Yamamoto, Shusaku (15th Floor 2-27, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka, JP)

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