The chromatographic separation of magnesium protoporphyrin IX dimethyl esters from zinc protoporphyrin IX dimethyg esters
โ Scribed by S.J. Baum; R.K. Ellsworth
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 271 KB
- Volume
- 47
- Category
- Article
- ISSN
- 1873-3778
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A new total synthesis of a protoporphyrin IX derivative in which the ฮฑ-methylene protons of the 13,17-(2-methoxycarbonylethyl) substituents are regioselectively deuterated is described. The deuterated porphyrin was obtained using the oxidative cyclization of an a,c-biladiene dihydrobromide.
## Abstract The three structural isomers bilirubin IXฮฑ (**1a**), IIIฮฑ (**2a**), and XIIIฮฑ (**3a**) have been separated on a preparative scale by highโperformance lowโpressure liquid chromatography. They were converted into their dimethyl esters **1b, 2b**, and **3b** and characterized by UV, IR, MS