Intramolecular triplet-sensitized o-nitrophenylethyl photoprotective groups

摘要

The invention relates to a method for the synthesis of biopolymers by step-by-step construction using protected synthesis units carrying two-stage protective groups. Said two-stage protective groups are activated by a first irradiation step and separated by a subsequent chemical treatment step. Photoactivatable constituents which significantly accelerate the activation process by means of intramolecular triplet sensitizers and/or which have fluorescence characteristics are used. Said two-stage protective groups can especially be used in a quality control.