The present invention provides a compound represented by formula (I) or a pharmaceutically acceptable salt thereof which has the effect of antagonizing the LPA1 receptor.

The present invention provides a compound represented by formula (I) or a pharmaceutically acceptable salt thereof which has the effect of antagonizing the LPA1 receptor.

A negative resist composition comprising an onium salt having formula (A) and a base polymer is provided. The resist composition exhibits a high resolution during pattern formation and forms a pattern with minimal LER. ##STR00001##

A negative resist composition comprising an onium salt having formula (A) and a base polymer is provided. The resist composition exhibits a high resolution during pattern formation and forms a pattern with minimal LER.

##STR00001##

Disclosed is an additive for nonaqueous electrolyte solutions, comprising a disulfonic acid amide compound represented by Formula (1).

##STR00001##

In Formula (1), A represents a C.sub.mH.sub.(2m-n)Z.sub.n, in which m represents an integer of 1 to 6, n represents an integer of 1 to 12, 2m-n is 0 or more, and Z represents a halogen atom, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 represent an alkyl group having 1 to 6 carbon atoms which is substituted with a phenyl group optionally having a substituent, or the like, and R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 may be linked respectively to form an alkylene group having 2 to 5 carbon atoms in total which forms a cyclic structure together with a nitrogen atom.

Disclosed is an additive for nonaqueous electrolyte solutions, comprising a disulfonic acid amide compound represented by Formula (1).

##STR00001##

In Formula (1), A represents a C.sub.mH.sub.(2m-n)Z.sub.n, in which m represents an integer of 1 to 6, n represents an integer of 1 to 12, 2m-n is 0 or more, and Z represents a halogen atom, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 represent an alkyl group having 1 to 6 carbon atoms which is substituted with a phenyl group optionally having a substituent, or the like, and R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 may be linked respectively to form an alkylene group having 2 to 5 carbon atoms in total which forms a cyclic structure together with a nitrogen atom.

The present invention provides a compound represented by formula (I) or a pharmaceutically acceptable salt thereof which has the effect of antagonizing the LPA1 receptor.

The present invention provides a compound represented by formula (I) or a pharmaceutically acceptable salt thereof which has the effect of antagonizing the LPA1 receptor.