申请人:YAMAGUCHI Satoshi
公开号:US20110171576A1
公开(公告)日:2011-07-14
A salt represented by the formula (I):
wherein Q
1
and Q
2
each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, L
1
represents *—CO—O-L
a
- or *—CH
2
—O-L
b
-, * represents a binding position to —C (Q
1
) (Q
2
)-, L
a
and L
b
independently represent a C1-C15 divalent saturated hydrocarbon group in which one or more —CH
2
— can be replaced by —O— or —CO—, ring W
1
represents a C2-C36 nitrogen-containing heterocyclic group in which one or more —CH
2
— can be replaced by —O—, and Z
1⊕
represents an organic counter ion.