Chelates of lead (II) and bismuth (III) based on trans-di-N-picolinate tetraazacycloalkanes
US9884881B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Jun 5, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K16/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a chelate resulting from the complexing of a trans-di-N-picolinate tetraazacycloalkane ligand with a metal cation, said ligand corresponding to formula (A) wherein n is equal to 0 or to 1, R is H or a C1-C18 alkyl radical, and R′ is H or a C1-C18 alkyl radical, said metal cation being a cation of a metal selected from the group consisting of lead (II) and bismuth (III). The invention is applicable in the field of lead trapping and alpha-radioimmunotherapy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.