Production method for 2-fluoro-4-borono-L-phenylalanine, and precursor of 2-fluoro-4-borono-L-phenylalanine
US10344042B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Jun 16, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention involves preparing compounds represented by the following formula: from a compound of the following formula: In these formulae: R1 represents a Br group, an iodine group, a Cl group, an NO2 group, or an NH2 group; R2 represents a halogen group, an NO2 group, an NH2 group, Sn(R6)3, N═N—NR7R8, OSO2R9, N R10R11, phenyliodonium, a heterocyclic group iodine, boric acid, or a borate ester; R30 represents a protective group PG1; R40 or R50 represent hydrogen, a protective group PG2, or C6H5(C6H5)C═N, in which NR40R50 are together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.