Abstract: A compound having an ability to bind to an S1P receptor and represented by formula (I), a salt thereof, a solvate thereof or a prodrug thereof is useful for prevention and/or treatment of rejection of transplantation, graft-versus-host disease, autoimmune disease, allergic disease and the like: wherein ring A is a cyclic group; ring B is a cyclic group which may have substituent(s); X is a spacer having 1 to 8 atoms in its main chain, etc.; Y is a spacer having 1 to 10 atoms in its main chain, etc.; n is 0 or 1, wherein when n is 0, m is 1 and R1 is a hydrogen atom or a substituent, and wherein when n is 1, m is 0 or an integer of 1 to 7 and R1 is a substituent, and wherein m is 2 or more, R1s are the same or different.

Abstract: A compound having an ability to bind to an SIP receptor and represented by formula (I), a salt thereof, a solvate thereof or a prodrug thereof is useful for prevention and/or treatment of rejection of transplantation, graft-versus-host disease, autoimmune disease, allergic disease and the like: wherein ring A is a cyclic group; ring B is a cyclic group which may have substituent(s); X is a spacer having 1 to 8 atoms in its main chain, etc.; Y is a spacer having 1 to 10 atoms in its main chain, etc.; n is 0 or 1, wherein when n is 0, m is 1 and R1 is a hydrogen atom or a substituent, and wherein when n is 1, m is 0 or an integer of 1 to 7 and R1 is a substituent, and wherein m is 2 or more, R1s are the same or different.

Abstract: A compound having an ability to bind to an S1P receptor (particularly EDG-6, preferably EDG-1 and EDG-6), for example, the compound represented by formula (I) of the present invention, a salt thereof, a solvate thereof or a prodrug thereof is useful for prevention and/or treatment of rejection of transplantation, graft-versus-host disease, autoimmune disease, allergic disease and the like. wherein ring A is a cyclic group; ring B is a cyclic group which may have substituent(s); X is a spacer having 1 to 8 atoms in its main chain, etc.; Y is a spacer having 1 to 10 atoms in its main chain, etc.; n is 0 or 1, wherein when n is 0, m is 1 and R1 is a hydrogen atom or a substituent, and wherein when n is 1, m is 0 or an integer of 1 to 7 and R1 is a substituent, and wherein m is 2 or more, R1s are the same or different.

Abstract: A compound having an ability to bind to an S1P receptor (particularly EDG-6, preferably EDG-1 and EDG-6), for example, the compound represented by formula (I) of the present invention, a salt thereof, a solvate thereof or a prodrug thereof is useful for prevention and/or treatment of rejection of transplantation, graft-versus-host disease, autoimmune disease, allergic disease and the like. wherein ring A is a cyclic group; ring B is a cyclic group which may have substituent(s); X is a spacer having 1 to 8 atoms in its main chain, etc.; Y is a spacer having 1 to 10 atoms in its main chain, etc.; n is 0 or 1, wherein when n is 0, m is 1 and R1 is a hydrogen atom or a substituent, and wherein when n is 1, m is 0 or an integer of 1 to 7 and R1 is a substituent, and wherein m is 2 or more, R1s are the same or different.

Abstract: A compound having an ability to bind to an S1P receptor (particularly EDG-6, preferably EDG-1 and EDG-6), for example, the compound represented by formula (I) of the present invention, a salt thereof, a solvate thereof or a prodrug thereof is useful for prevention and/or treatment of rejection of transplantation, graft-versus-host disease, autoimmune disease, allergic disease and the like. wherein ring A is a cyclic group; ring B is a cyclic group which may have substituent(s); X is a spacer having 1 to 8 atoms in its main chain, etc.; Y is a spacer having 1 to 10 atoms in its main chain, etc.; n is 0 or 1, wherein when n is 0, m is 1 and R1 is a hydrogen atom or a substituent, and wherein when n is 1, m is 0 or an integer of 1 to 7 and R1 is a substituent, and wherein m is 2 or more, R1s are the same or different.

Abstract: A user accesses a search server from a cellular telephone, and enters on a search page a numeric string obtained by numerical conversion of a keyword related to a desired site in accordance with an assignment relationship between characters and numerical keys. The search server searches a database by using as a key the numeric string sent thereto or a character string obtained by character conversion of the numeric string in accordance with the above-mentioned assignment relationship to retrieve candidates for a connection destination site, thereby sending back a reply to the cellular telephone of the user. The user selects a desired connection destination site from among the candidates to send back a reply to the search server. The search server responds to the cellular telephone by indicating a site address previously associated with the determined connection destination site as an access request destination. The cellular telephone accesses the connection destination site indicated by the received response.

Abstract: A cutter for optical fibers includes upper and lower frames pivotally connected at their ends pivotally movably relative to each other, a cutting blade provided on the upper frame for cutting optical fibers and supporting device provided on the lower frame for supporting an optical fiber to be cut. The upper frame includes a regulating device for moving the cutting blade in its longitudinal direction and stopping and fixing the cutting blade and a confirming device for visibly confirming a position where the cutting blade is fixed. With this arrangement, there is no need for exchanging of cutting blades every cutting of a fiber. Moreover, a cutting blade portion to be used can be visibly identified and it can be prevented to use again once used cutting edge portion of the cutting blade.