摘要:
A sialic acid derivative having an active carbonyl group represented by the formula [I]: (wherein R' represents hydrogen or acetyl group; R 2 represents hydrogen, a metal or a lower alkyl group; R 3 represents hydrogen, hydroxyl group, or a residue removed hydrogen from an alcohol portion of an active ester; Ac represents acetyl group; and n is 1 to 20, respectively). This sialic acid derivative [I] can be utilized as a starting material for various complex having a sialic acid in the molecule since it has an active carbonyl group in the molecule so that it shows high reactivity.
摘要:
This invention provides a novel compound having a formula such as This invention also provides a process for preparing such a compound. The novel compound has excellent immunological activity.
摘要:
This invention provides a novel compound having a formula such as or This invention also provides a process for preparing such a compound. The novel compound has an excellent immunological activity.
摘要:
The present invention provides ganglioside-related compounds expressed by the following formula: (wherein R 1 denotes a hydrogen atom or SiR 3 R 4 R 5 (wherein R 3 and R 4 each denotes a methyl or phenyl group, and R 5 denotes a tertiary butyl or dimethylphenylmethyl group), and R 2 denotes a hydrogen atom, a trityl group, or (wherein M denotes an alkali metal atom)) and methods of producing the same. These ganglioside-related compounds are useful as markers for the early detection of cancer and in the immunotherapy for cancer.
摘要:
This invention provides a novel compound having a formula such as This invention also provides a process for preparing such a compound. The novel compound has excellent immunological activity.
摘要:
The present invention provides ganglioside-related compounds expressed by the following formula: (wherein R 1 denotes a hydrogen atom or SiR 3 R 4 R 5 (wherein R 3 and R 4 each denotes a methyl or phenyl group, and R 5 denotes a tertiary butyl or dimethylphenylmethyl group), and R 2 denotes a hydrogen atom, a trityl group, or (wherein M denotes an alkali metal atom)) and methods of producing the same. These ganglioside-related compounds are useful as markers for the early detection of cancer and in the immunotherapy for cancer.
摘要翻译:本发明提供由下式表示的神经节苷脂相关化合物:(其中R表示氢原子或SiR 3 R 4 R 5(其中R 3和R 4各自表示甲基或苯基,R 5表示叔丁基或二甲基苯基甲基), R2表示氢原子,三苯甲基或者CHEM(其中M表示碱金属原子))及其制造方法。 这些神经节苷脂相关化合物可用作早期检测癌症和癌症免疫治疗的标志物。
摘要:
This invention provides a novel process for preparing a compound represented by the formula In accordance with this invention, the compound is prepared by reacting a compound represented by the formula with glycolic acid in the presence of dicyclohexylcarbodiimide. The compound (2) is a useful precursor for the preparation of N-glycolylneuraminic acid: