| 摘要 |
An immuno-suppressive agent containing, as an effective component, an enopyranose derivative of the following formula (I) or its salt: <CHEM> wherein R<1> is a hydrogen atom, alkyl which may be substituted, alkenyl, alkynyl, -OSO2R<7>, a halogen atom, -OCOR<7>, -NHCOR<8>, alkoxy, phenyl which may be substituted or a saccharose residue, R<2> is a hydrogen atom or alkyl, R<3> is a hydrogen atom or a halogen atom, R<4> is a hydrogen atom, -COR<9>, silyl which may be substituted or alkyl which may be substituted, one of R<5> and R<6> is hydroxyl, alkoxy which may be substituted, a saccharose residue, cycloalkyloxy which may be substituted or -OCOR<1><0> and the other is a hydrogen atom or alkyl which may be substituted, or R<4> and R<5> together form a single bond, while R<6> is a hydrogen atom or alkyl which may be substituted, each of R<7>, R<9> and R<1><0> is alkyl or phenyl which may be substituted, R<8> is alkyl, phenyl which may be substituted or benzyloxy, X is a hydrogen atom, alkyl which may be substituted, alkenyl which may be substituted, alkynyl which may be substituted, cycloalkyl which may be substituted, phenyl which may be substituted, pyridyl which may be substituted, furanyl which may be substituted, thienyl which may be substituted, formyl, -COR<1><1>, -C(W<1>)W<2>R<1><1> or -SO2R<1><1>, R<1><1> is a chain hydrocarbon group which may be substituted, a monocyclic hydrocarbon group which may be substituted, a polycyclic hydrocarbon group which may be substituted, a monocyclic heterocycle group which may be substituted, or a polycyclic heterocycle group which may be substituted, W<1> is an oxygen atom or a sulfur atom, W<2> is an oxygen atom, a sulfur atom or -NH-, Y is a hydrogen atom, alkyl which may be substituted, alkenyl which may be substituted or alkynyl which may be substituted. |
