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外観

白色～うすい黄色～うすい黄赤色粉末～結晶

化学的特性

?3-(Dimethylaminomethyl)indole [87-52-5], gramine, C11H14N2, Mr 174.25, mp 138 – 139 ℃, forms colorless needles. The compound is soluble in ethanol, diethyl ether, and chloroform and insoluble in water. It can be synthesized from indole by the Mannich reaction with dimethyl-amine and formaldehyde. Gramine is used to synthesize D,L-tryptophan, the plant growth regulators indole-3-acetic acid and indole-3-butanoic acid as well as the intermediate tryptamine.

使用

Reactant for preparation of:

• Dopamine D2 receptor antagonists
• Anti-malarial drugs
• 5-indolyl-Mannich bases
• Proliferation inhibitors
• Inhibitors of human mast cell chymase
• Preparation of DL-tryptophan
• Potential detoxification inhibitors of the crucifer phytoalexin brassinin
• 3-vinylindoles
• Serotonin 5-HT6 receptor ligand templates
• Selective protein kinase c delta (PKCδ) down regulators

一般的な説明

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG

純化方法

Crystallise gramine from diethyl ether, ethanol or acetone. It sublimes at 59o/0.001mm. The hydrochloride crystallises from EtOH/Et2O with m 190.5-191.0o(dec). [Culvenor et al. Aust J Chem 17 1301 1964, Beilstein 22 III/IV 4302, 22/10 V 25.]