Patent ID: 7569692

Claim:
A compound represented by formula (11): wherein, R C1 and R C2 each represent a hydrogen atom or a substituent; R C3 , R C4 , R C5 , and R C6 each represent a substituent; n C3 and n C6 each represent an integer of 0 to 3; n C4 and n C5 each represent an integer of 0 to 4; when a plurality of R C3 , R C4 , R C5 or R C6 exists, the respective R C3 s, R C4 s, R C5 S, or R C6 s may be the same or different from each other, and, respectively, the R C3 s, R C4 s, R C5 s, or R C6 s may bond to each other to form a condensed ring.