Compositions for chelating metals at low temperatures
US12128115B2 · kind B2 · utility
0Cited by
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7Claims
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Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/05
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of performing a chelating reaction comprising contacting a divalent metal with a compound of Formula (I): or a salt thereof wherein: each of R1-R4 is independently selected from the group consisting of CH2COORa and CH2C(═O)NHRa; each of R5-R12 is independently selected from the group consisting of H and -L-X; each Ra is independently selected from the group consisting of H and -L-X; each L is independently selected from the group consisting of absent and a linking group; and each X is a biological agent; and wherein the contacting occurs at a temperature below about 40° C. to form a chelated composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.