203  US 9,291,896 B2  204  -continued  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.  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  0  0$_{0~0Me }$ (A) 