4,6-o-hydroxyphosphoryl-glucosamine derivatives

摘要

PCT No. PCT/JP91/00475 Sec. 371 Date Dec. 12, 1991 Sec. 102(e) Date Dec. 12, 1991 PCT Filed Apr. 11, 1991 PCT Pub. No. WO91/16332 PCT Pub. Date Oct. 31, 1991.4,6-O-hydroxyphosphoryl-glucosamine derivatives as shown in the following formula (I) and their pharmaceutically-acceptable salts: (* CHEMICAL STRUCTURE *) (I) wherein R1 and R2 represent a hydrogen atom or a hydroxy group; one of R3 and R4 represents -OCO(CH2)nCH3, -CH2(CH2)nCH3, or -O-CH2(CH2)nCH3, and the other represents a hydrogen atom; l is an integer of 4-16; m is an integer of 4-16; and n is an integer of 6-18.