AMPHIPHILIC SQUARAINE DYES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF

摘要

The present invention relates to amphiphilic squaraine dyes of the general formula (1) as shown below Formula (1) wherein, R¹ = -(CH₂-CH₂-O)_n-CH₃, n = 4-8, or -(CH₂)_n-CO₂X, n = 3-6, X = H, succinamide and R² = -CH₃ or -(CH₂-CH₂-O)_n-CH₃, n = 4-8 and pharmaceutically acceptable derivatives thereof, for use as near infrared fluorescence probes in photodynamic diagnostic and biological, biochemical and industrial applications.