摘要:
It is an object of the present invention to provide a novel method for producing a peptide thioester. In the present invention, general peptide synthesis is performed on a solid-phase resin, carboxylic acid obtained after cutout is allowed to react with p-toluenesulfonyl isocyanate, and then the reaction product is alkylated, and is reacted with thiol. Thus, peptide thioester is simply synthesized under mild conditions.
摘要:
The present invention provides a compound represented by the following formula (1): wherein X1 and X2 each independently represent a hydrogen atom or a hydroxyl-protecting group; Y represents a C7-20 aralkyl group which may optionally have one or more substituents selected from a halogen atom, a lower alkyl group or a lower alkoxy group; and Z represents a halogen atom, a C1-4 alkylthio, or an arylthio group, or its corresponding sulfoxide group.
摘要:
It is an object of the present invention to provide a novel method for producing a peptide thioester. In the present invention, general peptide synthesis is performed on a solid-phase resin, carboxylic acid obtained after cutout is allowed to react with p-toluenesulfonyl isocyanate, and then the reaction product is alkylated, and is reacted with thiol. Thus, peptide thioester is simply synthesized under mild conditions.
摘要:
The present invention is intended to provide a pharmaceutical for tumor treatment that stays specifically in interstitium for a long time and exhibits an effect, and provides a complex consisting of a substance having specific binding affinity for stroma and an antitumor compound bound to the substance via a linker.
摘要:
This invention provides a method of producing a large amount of an α-form or β-form of N-pyranosyl-tryptophan having a specified structure and preparing an antibody therefrom. The method comprises a step of allowing a pyranose compound to react with a 3-pyrazyl-indole compound in the presence of a first base to obtain a 1-pyranosyl-3-pyrazyl-indole compound, and a step of treating the 1-pyranosyl-3-pyrazyl-indole compound with an acid, treating the resultant with a hydrogenation catalyst, and further treating the resultant with a second base to synthesize N-pyranosyl-tryptophan, thereby producing an antibody therefrom.
摘要:
The present invention provides a compound represented by the following formula (1): wherein X1 and X2 each independently represent a hydrogen atom or a hydroxyl-protecting group; Y represents a C7-20 aralkyl group which may optionally have one or more substituents selected from a halogen atom, a lower alkyl group or a lower alkoxy group; and Z represents a halogen atom, a C1-4 alkylthio, or an arylthio group, or its corresponding sulfoxide group.
摘要:
This invention provides a method of producing a large amount of an α-form or β-form of N-pyranosyl-tryptophan having a specified structure and preparing an antibody therefrom. The method comprises a step of allowing a pyranose compound to react with a 3-pyrazyl-indole compound in the presence of a first base to obtain a 1-pyranosyl-3-pyrazyl-indole compound, and a step of treating the 1-pyranosyl-3-pyrazyl-indole compound with an acid, treating the resultant with a hydrogenation catalyst, and further treating the resultant with a second base to synthesize N-pyranosyl-tryptophan, thereby producing an antibody therefrom.