Method for the preparation of (3S,3S′) 4,4′-disulfanediylbis (3-aminobutane 1-sulfonic acid)
US9340497B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Oct 27, 2015 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Oct 27, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a new method for the preparation of (3S,3S′) 4,4′-disulfanediylbis(3-aminobutane 1-sulfonic acid) in five steps from (S)-ethyl 2-(benzyloxycarbonylamino)-4-(neopentyloxysulfonyl)butanoate A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.