Synthesis and structure-activity study of protease inhibitors. V. Chemical modification of 6-amidino-2-naphthyl 4-guanidinobenzoate

DOI: 10.1248/cpb.41.117

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Chemical and Pharmaceutical Bulletin p. 117 - 125 (1993)

Update date:2022-08-03

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Authors:

Nakayama

Taira Taira

Ikeda Ikeda

Ashizawa

Oda Oda

Arakawa Arakawa

Fujii Fujii

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Article abstract of DOI:10.1248/cpb.41.117

By developing 6-amidino-2-naphthyl 4-guanidinobenzoate (I, FUT-175) as a basic structure, its various derivatives were synthesized and their inhibitory activities on trypsin, plasmin, kallikrein, thrombin, C1r and C1s as well as on complement-mediated hemolysis were examined. The protective effect of these compounds on complement-mediated Forssman shock was also examined in guinea pigs. 6-Amidino-2-naphthyl 4-[(4,5-dihydro-1H-imidazol-2-yl)amino]benzoate (41, FUT-187) was found to be a suitable compound for oral administration with anti-complement activity superior to that of compound I.

Full text of DOI:10.1248/cpb.41.117

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