PROCESS FOR STEREROSELECTIVE GLYCOSYLATION

Title:

PROCESS FOR STEREROSELECTIVE GLYCOSYLATION

Document Type and Number:

Japanese Patent JPH069674

Kind Code:

A

Abstract:

PURPOSE: To obtain an α- or β-glycoside by reacting a hexopyranose 1-carbonic acid ester derivative in a state of solution with a hydroxy compound, thereby stereoselectively glycosylating the derivative under mild condition.

CONSTITUTION: A hexopyranose 1-carbonic acid ester derivative dissolved in ethyl ether, etc., is made to react with a hydroxy compound (preferably a sugar derivative) in the presence of an acid catalyst preferably at -20 to -40°C to effect the objective glycosylation reaction. The process can selectively produce a β-glycoside at a reaction temperature of ≤0°C and an α-glycoside at a reaction temperature of ≥0°C.

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Inventors:

ISHIDO RYOJI
TAKAI IZUMI
SHIBAZAKI YOSHIYUKI

Application Number:

JP19136992A

Publication Date:

January 18, 1994

Filing Date:

June 26, 1992

Export Citation:

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Assignee:

TOKYO YATSUKA UNIV

International Classes:

B01J27/122; B01J27/135; B01J31/12; B01J31/14; C07B53/00; C07B61/00; C07H15/04; C07H15/18; C07H15/20; C07H15/207; (IPC1-7): C07H15/04; B01J27/122; B01J27/135; B01J31/12; B01J31/14; C07B53/00; C07H15/18; C07H15/20; C07H15/207

Attorney, Agent or Firm:

Kazuo Yoshii

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