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The compound (D) may be also composed by arbitrarily combining the basic compound and the structure represented by formula (d-1). 

The compound (D) is more preferably a compound having a structure represented by the following formula (A). 

Incidentally, the compound (D) may be a compound cor› responding to the above-described basic compound as long as it is a low molecular compound having a group capable of leaving by the action of an acid. 

-continued 

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In formula (A), Ra represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group. Also, when n=2, two Ra may be the same or different, and two Ra may combine with each other to form a divalent hetero› cyclic hydrocarbon group (preferably having a carbon num› ber of 20 or less) or a derivative thereof. 

Each Rb independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group or an alkoxyalkyl group, provided that in ----C(Rb )(Rb) (Rb), when one or more Rb are a hydrogen atom, at least one of the remaining Rb is a cyclopropyl group, a 1-alkoxyalkyl group or an aryl group. 

At least two Rb may combine to form an alicyclic hydro› carbon group, an aromatic hydrocarbon group, a heterocyclic hydrocarbon group, or a derivative thereof. 

n represents an integer of Oto 2, m represents an integer of 1 to 3, and n+m=3. 

In formula (A), the alkyl group, cycloalkyl group, aryl group and aralkyl group of Ra and Rb may be substituted with a functional group such as hydroxyl group, cyano group, amino group, pyrrolidino group, piperidino group, mor- pholino group and oxo group, an alkoxy group, or a halogen atom. The same applies to the alkoxyalkyl group of Rb. 

Examples of the alkyl group, cycloalkyl group, aryl group and aralkyl group (these alkyl, cycloalkyl, aryl and aralkyl groups may be substituted with the above-described func- tional group, an alkoxy group or a halogen atom) of Ra and/or Rb include: 

a group derived from a linear or branched alkane such as methane, ethane, propane, butane, pentane, hexane, heptane, octane, nonane, decane, undecane and dodecane, or a group where the group derived from an alkane is substituted with one or more kinds of or one or more groups of cycloalkyl groups such as cyclobutyl group, cyclopentyl group and cyclohexyl group; 

a group derived from a cycloalkane such as cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, nor› bornane, adamantane and noradamantane, or a group where the group derived from a cycloalkane is substituted with one or more kinds of or one or more groups oflinear or branched alkyl groups such as methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, 2-methylpropyl group, 1-methylpropyl group and tert-butyl group; 

a group derived from an aromatic compound such as ben› zene, naphthalene and anthracene, or a group where the group derived from an aromatic compound is substituted with one or more kinds of or one or more groups of linear or branched alkyl groups such as methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, 2-methylpropyl group, 1-methylpropyl group and tert-butyl group; 

a group derived from a heterocyclic compound such as pyrrolidine, piperidine, morpholine, tetrahydrofuran, tet› rahydropyran, indole, indoline, quinoline, perhydroquino› line, indazole and benzimidazole, or a group where the group derived from a heterocyclic compound is substituted with one or more kinds of or one or more groups oflinear or branched alkyl groups or aromatic compound-derived groups; a group where the group derived from a linear or branched alkane or the group derived from a cycloalkane is substituted with one 

