A new class of neuramidase inhibitor prodrugs is provided characterized by a prodrug moiety of a carboxyl group modified to form a carbonyl ethoxy amino acid, a carbonyl ethoxy dipeptide or a carbonyl ethoxy tripeptide, a guanidine group modified to form a carbonyl ethoxy amino acid, a carbonyl ethoxy dipeptide, a carbonyl ethoxy tripeptide; a primary alcohol modified to form an esterified single amino acid, dipeptide or tripeptide of zanavimir of the unaltered therapeutic agent. Exemplary therapeutic agents so modified to form prodrugs include zanavimir, oseltamivir and peramivir. The prodrug has increased oral bioavailability relative to the unaltered neuraminidase inhibitor and is effective in the inhibition of viral infections involving neuraminidase in the viral reproductive cycle.
提供了一类新的
神经氨酸酶抑制剂前药,其特征是前药部分为羧基团改性成为羰基乙氧
氨基酸、羰基乙氧二肽或羰基乙氧三肽,
鸟嘌呤基团改性成为羰基乙氧
氨基酸、羰基乙氧二肽或羰基乙氧三肽;主要醇改性成为酯化的单
氨基酸、二肽或三肽的扎那维米的未改变的治疗剂。例如,经改性形成前药的治疗剂包括扎那维米、
奥司他韦和
帕拉米韦。与未改变的
神经氨酸酶抑制剂相比,这种前药具有增加的口服
生物利用度,并且在涉及病毒生殖周期中的
神经氨酸酶的病毒感染抑制中有效。