e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Tetrahedron
A novel synthesis of the 2-amino-1H-imidazol-4-carbaldehyde derivatives and its application to the efficient synthesis of 2-aminoimidazole alkaloids, oroidin, …
A novel synthesis of 2-amino-1H-imidazol-4-carbaldehyde derivatives was achieved by the reaction of tert-butoxycarbonylguanidine with 3-bromo-1, 1-dimethoxypropan-2-one as a key step. The usefulness of the derivatives as building blocks was proved by accomplishing the efficient synthesis of the representative 2-aminoimidazole alkaloids, oroidin, hymenidin, dispacamide, monobromodispacamide, and ageladine A.
![tert-butyl (E)-[4-(3-(4,5-dibromo-1H-pyrrole-2-carboxamido)prop-1-enyl)-1H-imidazol-2-yl]carbamate Structure](https://image.chemsrc.com/caspic/342/917919-56-3.png)
![N-[(E)-3-(2-amino-1H-imidazol-5-yl)prop-2-enyl]-4,5-dibromo-1H-pyrrole-2-carboxamide Structure](https://image.chemsrc.com/caspic/106/34649-22-4.png)