摘要:
A lactyl tetrapeptide of the formula can be prepared by conventional peptide synthesis. One isomer, FR 900156, is obtained by cultivation of a suitable Streptomyces strain such as Str. violaceus ATCC 31481 or Str. olivaceogriseus ATCC 31427. The invention also relates to a pharmaceutical composition comprising, as an effective ingredient, the above compound in association with a pharmaceutically acceptable, substantially non-toxic carrier or excipient.
摘要:
The present invention relates to peptide compound and a pharmaceutically acceptable salt thereof which have pharmacological activities such as endothelin antagonistic activity and the like, to processes for its preparation, to a pharmaceutical composition comprising the same, and to a method of using the same for manufacturing a medicament in the treatment and the prevention of endothelin mediated diseases such as hypertension, and the like.
摘要:
The present invention relates to novel indole derivatives and a pharmaceutically acceptable salt thereof which have pharmacological activities such as inhibitory activity on testosteron 5a-reductase and the like, to process for preparation thereof, to a pharmaceutical composition comprising the same and to a use of the same for manufacturing a medicament.
摘要:
The present invention relates to peptide compound and a pharmaceutically acceptable salt thereof which have pharmacological activities such as endothelin antagonistic activity and the like, to processes for its preparation, to a pharmaceutical composition comprising the same, and to a method of using the same for manufacturing a medicament in the treatment and the prevention of endothelin mediated diseases such as hypertension, and the like.
摘要:
A compound of the formula : wherein R¹ is lower alkyl, halo(lower)alkyl, cyclo(lower)alkyl or lower alkylthio, R² is hydrogen or imino-protective group, R³ is hydrogen or halogen, A is lower alkylene, and is a group of the formula : in which X¹, X², X³ and X⁴ are each N or CR⁴, in which R⁴ is hydrogen, lower alkyl, lower alkoxy, halogen, halo(lower)alkyl, esterified carboxy, halo(lower)alkoxy or hydroxy, provided that at least one of X¹, X², X³ and X⁴ is N, and pharmaceutically acceptable salts thereof, processes for their preparation and pharmaceutical compositions comprising them as an active ingredient in admixture with a pharmaceutically acceptable carrier or excipient.
摘要:
A compound of the formula : wherein R¹ is alkyl, ar(lower)alkyl which may have suitable substituent(s), or heterocyclic(lower)alkyl, R² is hydrogen or an acyl group, and R³ is carboxy(lower)alkyl, protected carboxy(lower)alkyl, carboxyaryl or protected carboxyaryl, and a pharmaceutically acceptable salt thereof, processes for their preparation and pharmaceutical compositions comprising them or a pharmaceutically acceptable salt thereof in admixture with pharmaceutically acceptable carriers.
摘要:
A compound of the formula : wherein R¹ is hydrogen or an acyl group, R² is an acyl group, R³ is carboxy(lower)alkyl, lower alkyl substituted with carboxy and one or more halogen atom(s), protected carboxy(lower)alkyl, carboxyaryl, protected carboxyaryl, carboxy, protected carboxy, hydroxy(lower)alkyl, sulfino(lower)alkyl, phosphono(lower)alkyl, protected phosphono(lower)alkyl or halo(lower)alkyl, R⁷ is hydrogen or lower alkyl, and A is (in which R⁸ is hydrogen or lower alkyl), and a pharmaceutically acceptable salt thereof, processes for its preparation and pharmaceutical compositions comprising them. The invention also relates to intermediates of the formula and process for production thereof.