HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Nitrobenzenesulfonyl chloride → Nalpha-(2-nitrobenzenesulfonyl)-Nepsilon-(9-fluorenylmethoxycarbonyl)-L-lysine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Nitrobenzenesulfonyl chloride | HCID 15540 | — |
| Reactant | Trifluoroacetate | HCID 84468 | — |
| Reactant | (2S)-2-(((tert-butoxy)carbonyl)amino)-6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)hexanoic acid | HCID 10983524 | — |
| Reactant | Trifluoroacetic acid methylene chloride | HCID 21863450 | — |
| Product | Nalpha-(2-nitrobenzenesulfonyl)-Nepsilon-(9-fluorenylmethoxycarbonyl)-L-lysine | HCID 86604341 | 48% |
Reaction Steps
Nα-tert-butoxycarbonyl-Nε-(9-fluorenylmethoxycarbonyl)-L-lysine was deprotected at the α position by treatment with TFA/CH2Cl2 as described in the procedure outlined in example 24 and the resulting trifluoroacetate salt was alkylated with 2-nitrobenzenesulfonyl chloride as described in example 2, affording the title compound in 48% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06455587B1 |
| Source dataset | uspto-grants-2002_09 |
| ORD ID | ord-b8f4291d930549c4b3cc3fcffddad86a |
| Source note | uspto-grants-2002_09 |