Process for preparing substituted polyazamacrocycles
US5721361A · kind A · utility
7Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Jun 11, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F13/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a substituted polyazamacrocycle is provided which comprises contacting a diamine or triamine and a dicarboxylic acid or ester or anhydride thereof in the presence of a suitable base and a suitable solvent to produce the substituted polyazamacrocycle provided that when an ester of said dicarboxylic acid is used, said suitable base is optional, and when said dicarboxylic acid or an anhydride of said dicarboxylic acid is used, the reaction mixture further comprises a suitable coupling agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.