To provide a compound which is high in sensitivity and which provides high resolution and high flatness. A compound represented by the following formula (P-0):

##STR00001##

wherein Ar is a group having an aryl group having 6 to 60 carbon atoms, each OR.sup.TS is independently a hydroxy group or a group having a specified ion moiety, and n.sup.1 is an integer of 1 to 20, provided that at least one OR.sup.TS is a group having a specified ion moiety.

A salt represented by formula (I): ##STR00001##
wherein Q.sup.1 and Q.sup.2 independently represent a fluorine atom or a C.sub.1 to C.sub.6 perfluoroalkyl group, R.sup.1 and R.sup.2 each independently represent a hydrogen atom, a fluorine atom or a C.sub.1 to C.sub.6 perfluoroalkyl group, z represents an integer of 0 to 6, R.sup.3 represents a hydrogen atom, a fluorine atom, a C.sub.1 to C.sub.12 alkyl group or a C.sub.1 to C.sub.12 fluorinated alkyl group, R.sup.4 represents a C.sub.1 to C.sub.12 fluorinated alkyl group, L.sup.2 represents a single bond, a C.sub.1 to C.sub.12 divalent saturated hydrocarbon group, etc., R.sup.5 represents a hydrogen atom, a halogen atom or a C.sub.1 to C.sub.6 alkyl group that may have a halogen atom, L.sup.1 represents a group represented by formula (b1-1), etc., * represents a bonding site to —CR.sup.3R.sup.4; L.sup.b2 and L.sup.b3 each independently represent a single bond or a C.sub.1 to C.sub.22 divalent saturated hydrocarbon group; Z.sup.+ represents an organic cation.

A salt represented by formula (I): ##STR00001##
wherein Q.sup.1 and Q.sup.2 independently represent a fluorine atom or a C.sub.1 to C.sub.6 perfluoroalkyl group, R.sup.1 and R.sup.2 each independently represent a hydrogen atom, a fluorine atom or a C.sub.1 to C.sub.6 perfluoroalkyl group, z represents an integer of 0 to 6, R.sup.3 represents a hydrogen atom, a fluorine atom, a C.sub.1 to C.sub.12 alkyl group or a C.sub.1 to C.sub.12 fluorinated alkyl group, R.sup.4 represents a C.sub.1 to C.sub.12 fluorinated alkyl group, L.sup.2 represents a single bond, a C.sub.1 to C.sub.12 divalent saturated hydrocarbon group, etc., R.sup.5 represents a hydrogen atom, a halogen atom or a C.sub.1 to C.sub.6 alkyl group that may have a halogen atom, L.sup.1 represents a group represented by formula (b1-1), etc., * represents a bonding site to —CR.sup.3R.sup.4; L.sup.b2 and L.sup.b3 each independently represent a single bond or a C.sub.1 to C.sub.22 divalent saturated hydrocarbon group; Z.sup.+ represents an organic cation.

A novel sulfonium salt having high sensitivity with respect to active energy rays, a photoacid generator including the sulfonium salt, and a photosensitive composition containing the photoacid generator. The sulfonium salt is represented by formula (a1). In the formula, R.sup.1 and R.sup.2 each independently represent the group that is represented by formula (a2) or an alkyl group that may be substituted by a halogen atom, R.sup.1 and R.sup.2 are bonded to each other and may form a ring with the sulfur atom within the formula, R.sup.3 is the group represented by formula (a3) or the group represented by formula (a4), A.sup.1 represents S or the like, X.sup.− represents a monovalent anion, and R.sup.1 and R.sup.2 are not both an alkyl group which may be substituted with a halogen atom. In formulas (a2) to (a4), the ring Z.sup.1 represents an aromatic hydrocarbon ring, R.sup.4, R.sup.6, R.sup.9, and R.sup.10 each represents a specific monovalent group, R.sup.5, R.sup.7, and R.sup.8 each represents a specific divalent group, A.sup.2 and A.sup.3 each represents S or the like, m1 represents an integer of 0 or more, and n1 and n2 each represent 0 or more.

##STR00001##

A novel sulfonium salt having high sensitivity with respect to active energy rays, a photoacid generator including the sulfonium salt, and a photosensitive composition containing the photoacid generator. The sulfonium salt is represented by formula (a1). In the formula, R.sup.1 and R.sup.2 each independently represent the group that is represented by formula (a2) or an alkyl group that may be substituted by a halogen atom, R.sup.1 and R.sup.2 are bonded to each other and may form a ring with the sulfur atom within the formula, R.sup.3 is the group represented by formula (a3) or the group represented by formula (a4), A.sup.1 represents S or the like, X.sup.− represents a monovalent anion, and R.sup.1 and R.sup.2 are not both an alkyl group which may be substituted with a halogen atom. In formulas (a2) to (a4), the ring Z.sup.1 represents an aromatic hydrocarbon ring, R.sup.4, R.sup.6, R.sup.9, and R.sup.10 each represents a specific monovalent group, R.sup.5, R.sup.7, and R.sup.8 each represents a specific divalent group, A.sup.2 and A.sup.3 each represents S or the like, m1 represents an integer of 0 or more, and n1 and n2 each represent 0 or more.

##STR00001##

The present invention relates to novel nargenicin related compounds which can inhibit DnaE and have antibacterial, particularly antimycobacterial activity against Mycobacterium tuberculosis. The present invention also relates to method for inhibiting growth of mycobacterial cells as well as a method of treating mycobacterial infections by Mycobacterium tuberculosis by administering an antimycobacterially effective amount of nargenicin or a nargenicin-related compound and/or their pharmaceutically acceptable salts.

The present invention relates to novel nargenicin related compounds which can inhibit DnaE and have antibacterial, particularly antimycobacterial activity against Mycobacterium tuberculosis. The present invention also relates to method for inhibiting growth of mycobacterial cells as well as a method of treating mycobacterial infections by Mycobacterium tuberculosis by administering an antimycobacterially effective amount of nargenicin or a nargenicin-related compound and/or their pharmaceutically acceptable salts.

An electrolyte includes a compound of formula 1:

##STR00001##

R.sub.1 and R.sub.2 are each independently selected from H, halogen atom, a substituted or unsubstituted C.sub.1-10 alkyl group, a substituted or unsubstituted C.sub.3-10 cycloalkyl group, a substituted or unsubstituted C.sub.2-10 alkenyl group, a substituted or unsubstituted C.sub.2-10 alkynyl group, a substituted or unsubstituted C.sub.1-10 alkoxy group, a substituted or unsubstituted C.sub.6-10 aryl group, a substituted or unsubstituted C.sub.3-10 heteroaryl group, or any combination thereof. R is selected from a substituted or unsubstituted C.sub.1-10 alkyl group, a substituted or unsubstituted C.sub.3-10 cycloalkyl group, a substituted or unsubstituted C.sub.2-10 alkenyl group, a substituted or unsubstituted C.sub.2-10 alkynyl group, a substituted or unsubstituted C.sub.1-10 alkoxy group, a substituted or unsubstituted C.sub.6-10 aryl group or a substituted or unsubstituted C.sub.3-10 heteroaryl group, a substituted or unsubstituted C.sub.3-10 heterocycloalkyl group, a butyrolactam group,

##STR00002##

or any combination thereof.

An electrolyte includes a compound of formula 1:

##STR00001##

R.sub.1 and R.sub.2 are each independently selected from H, halogen atom, a substituted or unsubstituted C.sub.1-10 alkyl group, a substituted or unsubstituted C.sub.3-10 cycloalkyl group, a substituted or unsubstituted C.sub.2-10 alkenyl group, a substituted or unsubstituted C.sub.2-10 alkynyl group, a substituted or unsubstituted C.sub.1-10 alkoxy group, a substituted or unsubstituted C.sub.6-10 aryl group, a substituted or unsubstituted C.sub.3-10 heteroaryl group, or any combination thereof. R is selected from a substituted or unsubstituted C.sub.1-10 alkyl group, a substituted or unsubstituted C.sub.3-10 cycloalkyl group, a substituted or unsubstituted C.sub.2-10 alkenyl group, a substituted or unsubstituted C.sub.2-10 alkynyl group, a substituted or unsubstituted C.sub.1-10 alkoxy group, a substituted or unsubstituted C.sub.6-10 aryl group or a substituted or unsubstituted C.sub.3-10 heteroaryl group, a substituted or unsubstituted C.sub.3-10 heterocycloalkyl group, a butyrolactam group,

##STR00002##

or any combination thereof.

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid is represented by General Formula (A) below, and wherein a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less,

##STR00001##

where, in General Formula (A), R.sub.1, R.sub.2, and R.sub.3 are each independently a group including a hydrocarbon group, with the proviso that at least one of the hydrocarbon groups in R.sub.1, R.sub.2, and R.sub.3 is a straight-chain hydrocarbon group having 6 or greater carbon atoms.