Method for producing peptide compound, protective group-forming reagent, and condensed polycyclic aromatic hydrocarbon compound

A method for producing a peptide compound, comprising:

• a condensed polycyclic aromatic hydrocarbon compound represented by Formula (1),
• in Formula (1),
• a ring A represents a condensed polycyclic aromatic hydrocarbon ring selected from the group consisting of a naphthalene ring, an anthracene ring, a phenanthrene ring, a tetracene ring, a triphenylene ring, a pyrene ring, and a chrysene ring,
• YA's each independently represent —CH2OH, —CH2NHR, —CH2SH, or —CH2X0, where R represents a hydrogen atom, an alkyl group, or an aralkyl group, and X0 represents Cl, Br, or I,
• k represents an integer of 1 to 5 and n represents 1 or 2,
• RA's each independently represent an aliphatic hydrocarbon group or an organic group having an aliphatic hydrocarbon group,
• the ring A may further have a substituent in addition to YA and RA, and
• a total number of carbon atoms in all aliphatic hydrocarbon groups included in all RA's is 36 to 100, and
• wherein the condensed polycyclic aromatic hydrocarbon compound has at least one aliphatic hydrocarbon group having 18 to 100 carbon atoms in at least one RA.