methyl carbamimidate

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: According to U.S. Pat. No. 3,754,547, 2-amino-s-triazine derivatives can be prepared by reaction of N-cyanimido-esters with guanidine, O-methylisourea or amides. This process is also unsuitable on an industrial scale, since the yields produced are only about one-half of the desired yield (a maximum yield of 45% results in the case of the important compound 2-amino-4-methoxy-6-methyl-s-triazine), and the free O-methylisourea base, which is relatively unstable, must be used as the starting substance in this process. produced desired yield (a maximum yield of 45%

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: According to U.S. Pat. No. 3,754,547, 2-amino-s-triazine derivatives can be prepared by reaction of N-cyanimido-esters with guanidine, O-methylisourea or amides. This process is also unsuitable on an industrial scale, since the yields produced are only about one-half of the desired yield (a maximum yield of 45% results in the case of the important compound 2-amino-4-methoxy-6-methyl-s-triazine), and the free O-methylisourea base, which is relatively unstable, must be used as the starting substance in this process. produced desired yield (a maximum yield of 45%

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of 4-[2-(3-aminoprop-1-yl)oxybenzoyl]amino-3-methoxy-N-methyl-N-[2-[5-(4-dimethylaminopiperidin-1-yl)carbonylpent-1-yl]oxy-4-methylphenyl]benzamide (275 mg) and O-methylisourea (44 mg) in ethanol (5 ml) was refluxed for 3 days. The solvent was evaporated in vacuo and the residue was purified on basic silica gel column chromatography (SiO2 17 g, 1-80% methanol in chloroform) to give 4-[2-(3-guanidinoprop-1-yl)oxybenzoyl]amino-3-methoxy-N-methyl-N-[2-[5-(4-dimethylaminopiperidin-1-yl)carbonylpent-1-yl]oxy-4-methylphenyl]benzamide (53 mg). was refluxed for 3 days The solvent was evaporated in vacuo the residue was purified on basic silica gel column chromatography (SiO2 17 g, 1-80% methanol in chloroform)