[Object] To provide a substituted
cycloalkene derivative having an action to suppress
intracellular signal transduction or
cell activation induced by endotoxin and to suppress
cell responses due to the
intracellular signal transduction and
cell activation such as an excess generation of inflammatory mediators such as TNF-α, pharmacologically acceptable salts therefor, a medicament containing them as an
active ingredient, a preparation method therefor, and a medicament containing the aforementioned substituted
cycloalkene derivative as an
active ingredient which is superior in prophylaxis and / or treatment of diseases such as
sepsis (
septic shock, disseminated intravascular coagulation, multiple organ failure and the like), that are associated with
intracellular signal transduction or
cell activation induced by endotoxin and to cell responses to the
intracellular signal transduction and
cell activation.[Solution] A compound represented by the general formula (I):{whereinX and Y represent a group in which X and Y together with a
carbon atom to which they are bound form ring A (the ring is 3- to 7-membered heterocyclyl ring or 3- to 7-membered cycloalkyl ring), each represents a
hydrogen atom, or X and Y together represent a
substituent of ring B.l and m, independently from each other, represent an integer of 0 to 3, and l+m is 1 to 3.R1 is an
aliphatic hydrocarbon group and the like which may be substituted with a group selected from
Substituent group β and
Substituent group γ. n represents an integer of 0 to 3.R2 is a C1-C6
alkyl group and the like which may be substituted with a group selected from a
hydrogen atom and
Substituent group β.R3 is a
phenyl group, 5- to 6-membered heteroaryl group and the like which may be substituted with a group selected from Substituent group ε.R5 is a C1-C6
alkyl group and the like which may be substituted with a group selected from a
hydrogen atom and Substituent group β.Provided that in the case where R3 is a
phenyl group which may be substituted with a group selected from Substituent group ε, X and Y represent a group in which X and Y together with a
carbon atom to which they are bound form ring A, or X and Y together represent a
substituent of ring B.