摘要:
The description relates to a process for producing pentapeptides of the formula (I) in which A and R1-R3 have the meanings given, in which the pentapeptide is constructed in steps from a prolinamide of the formula (II) in which R?1 and R2¿ have the meanings given above, and the group -NR1R2 may be hydrolytically separated from the peptide thus obtained.
摘要:
Disclosed is the compound Me2Val-Val-MeVal-Pro-Pro-NHBzl. HCl. The compound is produced from Z-Val-Val-MeVal-Pro-OR1, wherein Z and R1 have the meanings indicated in the description. The compound disclosed has anti-neoplastic properties.
摘要:
This invention relates to 1-amino-3-phenoxy-propane-derivatives of formula (1) (in which A, B, R, Rx, X and Z are defined as in the specification described) and methods for their preparation. These compounds may be used as modulators of multi-drug resistance in cancer chemotherapy and for circumvention of resistance in the treatment of malaria.
摘要:
Novel peptides of the formula A-B-D-E-F-L, wherein A, B, D, E, F, and L have the meanings stated in the specification, and their preparation are disclosed. The novel compounds are suitable for controlling diseases.
摘要:
The description relates to a process for producing N-protected N-alkylated amino acids of formula (1), in which R?s and R1 to R3¿ have the meanings given in the description, in which a compound of said formula (1), wherein R3 is a hydrogen atom, is added to a solution of a base in a non-protic solvent which is then mixed with an alkylising agent.
摘要:
The description relates to a process for producing N-protected N-alkylated amino acids of formula (1), in which R and R to R have the meanings given in the description, in which a compound of said formula (1), wherein R is a hydrogen atom, is added to a solution of a base in a non-protic solvent which is then mixed with an alkylising agent.
摘要:
Carboxylic acid derivatives have the formula (I), in which R to R6, X, Y, and Z have the meanings given in the description. Also disclosed is their preparation. These new compounds are useful for controlling diseases.
摘要:
A process for producing N-protected N-alkylated amino acids of formula (I) is described in which the components have the meaning given in the description. In the process, to a compound of formula (II) is added a solution of potassium-tert.-butanolate in a non-proteinic organic solvent and then a C1-2-alkyl halide is added.