Abstract: A method and system for relaying communications between a communication terminal and a server. The relay apparatus receives from the communication terminal an access request for a service to be performed by the server. The access request identifies the server and the service, designates use of an inter-server encrypted communication system, specifies performing authentication of the relay apparatus, and specifies an authentication server to issue ticket information including an identification (ID) character string that identifies the relay apparatus. The relay apparatus receives the ticket information from the authentication server. The relay apparatus, encrypts the access request and transmits the encrypted access request and the ticket information to the server. The server uses the ticket information to authenticate the relay apparatus. The relay apparatus decrypts the access reply and transmits the decrypted access reply to the communication apparatus.

Abstract: A method and system for relaying communications between a communication terminal and a server. The relay apparatus receives from the communication terminal an access request for a service to be performed by the server. The access request identifies the server and the service, designates use of an inter-server encrypted communication system, specifies performing authentication of the relay apparatus, and specifies an authentication server to issue ticket information including an identification (ID) character string that identifies the relay apparatus. The relay apparatus receives the ticket information from the authentication server. The relay apparatus, encrypts the access request and transmits the encrypted access request and the ticket information to the server. The server uses the ticket information to authenticate the relay apparatus. The relay apparatus decrypts the access reply and transmits the decrypted access reply to the communication apparatus.

Abstract: A desired isomer is selectively prepared by phosphorolyzing and isomerizing an anomer mixture of a 1-phosphorylated saccharide derivative while crystallizing one of the isomers to displace the equilibrium. Furthermore, using the action of a nucleoside phosphorylase, a nucleoside is prepared from the 1-phosphorylated saccharide derivative obtained and a base with improved stereoselectivity and a higher yield. This process is an anomer-selective process for preparing a 1-phosphorylated saccharide derivative and a nucleoside.

Abstract: A desired isomer is selectively prepared by phosphorolyzing and isomerizing an anomer mixture of a 1-phosphorylated saccharide derivative while crystallizing one of the isomers to displace the equilibrium. Furthermore, using the action of a nucleoside phosphorylase, a nucleoside is prepared from the 1-phosphorylated saccharide derivative obtained and a base with improved stereoselectivity and a higher yield. This process is an anomer-selective process for preparing a 1-phosphorylated saccharide derivative and a nucleoside.

Abstract: Using a compound selected from compounds represented by the following formula (1) (which include 3-phenyl-2-pyrazoline derivatives and 3-phenyl-tetrahydropyridazine derivatives) and pharmacologically acceptable salts thereof, an agent is provided which can activate glutamic acid transporter and which is useful for prevention and/treatment of cerebral ischemia (cerebral infarct and brain edema), amyotrophic lateral sclerosis (ALS), etc., all caused by glutamic acid toxicity.

Abstract: Using a compound selected from compounds represented by the following formula (1) 1

Abstract: A desired isomer is selectively prepared by phosphorolyzing and isomerizing an anomer mixture of a 1-phosphorylated saccharide derivative while crystallizing one of the isomers to displace the equilibrium. Furthermore, using the action of a nucleoside phosphorylase, a nucleoside is prepared from the 1-phosphorylated saccharide derivative obtained and a base with improved stereoselectivity and a higher yield. This process is an anomer-selective process for preparing a 1-phosphorylated saccharide derivative and a nucleoside.

Abstract: The present invention relates to quinoline-4-carbonylguanidine derivative represented by formula (1) ##STR1## and pharmaceutically acceptable salt thereof, a process for producing the same, and a Na.sup.+ /H.sup.+ exchanger inhibitor containing the compound as an active ingredient. The compounds of the present invention are useful as an agent for treating or preventing various diseases by hyperfunction of the Na.sup.+ /H.sup.+ exchanger and as a diagnostic agent for these diseases.

Abstract: The present invention relates to a novel (-)-2-pyrazoline compound and therapeutic agents containing the same as an effective ingredient; furthermore, it relates to a method for optically resolving 1-(3-pyridylcarbonyl)-5-methyl-2-pyrazoline.

Abstract: The present invention relates to a novel (-)-2-pyrazoline compound and therapeutic agents containing the same as an effective ingredient; furthermore, it relates to a method for optically resolving 1-(3-pyridylcarbonyl)-5-methyl-2-pyrazoline.

Abstract: Disclosed are dihalogenothiocyanopyrimidine derivatives of the general formula ##STR1## wherein X and Y are halogen atoms, a process for preparing such derivatives, as well as agricultural and horticultural fungicidal compositions containing such a derivative as active ingredient.