摘要:
A compound of formula (I) in which R1 is hydrogen, optionally substituted lower alkylcarbamoyl(lower)alkylidene, lower alkylidene, lower alkyl, optionally substituted ar(lower)alkyl, cyclo(lower)alkyl(lower)alkyl, protected carboxy(lower)alkyl, carboxy(lower)alkyl, hydroxy(lower)alkyl, optionally substituted lower alkylcarbamoyl(lower)alkyl, lower alkylthio(lower)alkyl, carboxy(lower)alkanoyl, protected carboxy(lower)alkanoyl, aroyl, lower alkanoyl, or optionally substituted arylcarbymoyl(lower)alkyl; R2 is hydrogen, carboxy, protected carboxy, formyl or N-(lower)alkyl-N-(lower)alkoxycarbamoyl; R3 is hydrogen or amidino-protective group; A is lower alkylene or carbonyl; X is (1), (2) or (3); Y is lower alkylene, -S- or -SO¿2?-; Z is -S- or -O-; and the line: ----- is a single bond or a double bond, or pharmaceutically acceptable salts thereof, which is useful as a medicament.
摘要:
This invention relates to new polypeptide compounds represented by general formula (I), wherein R?1, R2, R3 and R4¿ are as defined in the description or a salt thereof which has antimicrobial activities (especially, antifungal activities), inhibitory activity on β-1,3-glucan synthase, to process for preparation thereof, to a pharmaceutical composition comprising the same, and to a method for prophylactic and/or therapeutic treatment of infectious diseases including Pneumocystis carinii infection (e.g. Pneumocystis carinii pneumonia) in a human being or an animal.
摘要:
A compound of formula (I) in which R1 is hydrogen, optionally substituted lower alkylcarbamoyl(lower)alkylidene, lower alkylidene, lower alkyl, optionally substituted ar(lower)alkyl, cyclo(lower)alkyl(lower)alkyl, protected carboxy(lower)alkyl, carboxy(lower)alkyl, hydroxy(lower)alkyl, optionally substituted lower alkylcarbamoyl(lower)alkyl, lower alkylthio(lower)alkyl, carboxy(lower)alkanoyl, protected carboxy(lower)alkanoyl, aroyl, lower alkanoyl, or optionally substituted arylcarbymoyl(lower)alkyl; R2 is hydrogen, carboxy, protected carboxy, formyl or N-(lower)alkyl-N-(lower)alkoxycarbamoyl; R3 is hydrogen or amidino-protective group; A is lower alkylene or carbonyl; X is (1), (2) or (3); Y is lower alkylene, -S- or -SO¿2?-; Z is -S- or -O-; and the line: ----- is a single bond or a double bond, or pharmaceutically acceptable salts thereof, which is useful as a medicament.
摘要:
Guanidine derivatives of formula (I), wherein Y is N or C-R1 (in which R1 is hydrogen, lower alkyl, hydroxy, protected hydroxy, etc.), R2 is hydrogen, aryl which may have one suitable substituent, aryloxy, etc., R3 is hydrogen, lower alkoxy, hydroxy, protected hydroxy, etc., Z is N or C-R4 (in which R4 is hydrogen, carboxy, protected carboxy, nitro, halogen, hydroxy(lower)alkyl, etc.), and W is N or C-R12 (in which R12 is hydrogen, lower alkoxy, nitro, hydroxy or protected hydroxy), and pharmaceutically acceptable salts thereof which are useful as a medicament.
摘要:
Guanidine derivatives of formula (I) wherein R1 is hydrogen, hydroxy(lower)alkyl, protected hydroxy(lower)alkyl, acyl(lower)alkoxy, acyl(lower)alkenyl, or acyl, and R2 is ar(lower)alkenyl; aryl substituted with two suitable substituents; indenyl, indanyl, dihydrobenzocycloheptenyl, di(or tetra or hexa or octa or deca)hydronaphthyl, cyclopentenyl, dihydrothienyl, dihydrofuryl or heterobicyclic group, each of which may have suitable substituent(s); lower alkylthienyl; mono(or di)halothienyl; mono(or di or tri)halo(lower)alkylthienyl; acylthienyl; halofuryl; or mono(or di or tri)halo(lower)alkylfuryl; and a pharmaceutically acceptable salt thereof, which is useful as a medicament.