Description
β-Glu-PAB(CH2NH2)-Exatecan (Compound 9a) is a topoisomerase I inhibitor. β-Glu-PAB(CH2NH2)-Exatecan binds to the topoisomerase I-DNA complex to prevent DNA strand reconnection, thereby inducing DNA breakage and cell apoptosis. β-Glu-PAB(CH2NH2)-Exatecan can be specifically cleaved by β-glucuronidase highly expressed in the tumor microenvironment to release Exatecan for cytotoxic effect. β-Glu-PAB(CH2NH2)-Exatecan is also an intermediate of Mal((3S,3aR,6S,6aR) -hexahydrofuro [3, 2-B]furan-3,6-diamine-PEG12)-β -Glu-Pab-Exatecan. β-Glu-PAB(CH2NH2)-Exatecan is promising for research of cancers[1]