A-D-GALACTURONIDE DERIVATIVES AND LATE BLIGHT-CONTROLLING AGENT

WIPO Patent Application WO/1980/000082

A1

(Alpha)-D-Galacturonide derivatives, represented by the following general formula (I), and the salts thereof, as well as late blight-controlling agents containing them as effective ingredients. (FORMULA) (wherein R1 represents an alkyl group containing 1-8 carbon atoms, alkenyl group containing 2-8 carbon atoms, cycloalkyl group containing 3-8 carbon atoms, aryl group, or 5- or 6-membered unsaturated hetero ring residue; R2 represents a hydrogen atom or a methyl group; and A represents an oxygen atom or sulphur atom. The hydroxyl group bound to the carbon atom in the4-position of the galacturonide skeleton and the hydrogen atom bound to the carbon atom in the 5-position may be eliminated to form a double bond between the 4- and 5-positions). The compounds of general formula (I) are prepared according to processes illustrated by the following reaction formulae: Reaction formula 1 (FORMULA) Reaction formula 2 (FORMULA) Reaction formula 3 (FORMULA) (In the above formulae, R3 represents a protective group for the OH groups.)

TSUYUMU S (JP)
OTA K (JP)

PCT/JP1979/000155

January 24, 1980

June 19, 1979

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OTSUKA PHARMA CO LTD (JP)
TSUYUMU S (JP)
OTA K (JP)

A01N43/16; C07H15/04; C07H15/10; C07H15/14; C07H15/203; C07H17/00; (IPC1-7): C07H15/04; C07H15/10; C07H15/14; C07H15/20; C07H17/00

CHEMICAL ABSTRACTS, vol. 27, no. 14, 20 July 1933, Columbus, Ohio, US; abstract no. 34508
CHEMICAL ABSTRACTS, vol. 30, no. 22, 20 November 1936, Columbus, Ohio, US; abstract no. 82972
CHEMICAL ABSTRACTS, vol. 57, no. 10, 12 November 1962, Columbus, Ohio, US; abstract no. 12608H
CHEMICAL ABSTRACTS, vol. 56, no. 5, 5 March 1962, Columbus, Ohio, US; abstract no. P4854D

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