Patent ID: 9517267
Filing Date: 2016-12-13
CPC Classification: A61K,C07C

Claim Text:
1. A method for detecting a porphyrin accumulation site, comprising: irradiating a subject with the excitation light for porphyrins, wherein said subject has been administered in advance of said irradiation a precursor of porphyrins and a compound of the following formula (I): wherein R 1 is selected from the group consisting of an alkyl group having 1-10 carbons, a cycloalkyl group having 3-8 carbons, an aryl group having 6-14 carbons, and an aralkyl group having 7-15 carbons, and R 2 , R 3 , and R 4 each represent a hydroxyl group, or a salt thereof, said precursor of porphyrins and compound of formula (I) having been administered to said subject at simultaneous or different times, and detecting the fluorescence of porphyrins, thereby detecting the porphyrin accumulation site.