HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (S)-3-[(S)-2-(4-acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-(4-nitro-benzenesulfonylamino)-propionic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-Nitrobenzenesulfonyl chloride | HCID 7404 | — |
| Reactant | (S)-3-[(S)-2-(4-Acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-tert-butoxycarbonylamino-propionic acid methyl ester | HCID 58327221 | — |
| Reactant | (S)-3-[(S)-2-(4-acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-amino-propionic acid methyl ester | HCID 67251459 | — |
| Product | (S)-3-[(S)-2-(4-acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-(4-nitro-benzenesulfonylamino)-propionic acid methyl ester | HCID 58327066 | — |
Reaction Steps
(S)-3-[(S)-2-(4-Acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-tert-butoxycarbonylamino-propionic acid methyl ester (208 mg) was converted to the HCl salt of (S)-3-[(S)-2-(4-acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-amino-propionic acid methyl ester according to General Procedure C. This intermediate was further reacted with 4-nitrobenzenesulfonyl chloride as described in General Procedure F to furnish (S)-3-[(S)-2-(4-acetoxy-phenyl)-2,3-dihydro-benzo[1,4]dioxin-6-yl]-2-(4-nitro-benzenesulfonylamino)-propionic acid methyl ester (230 mg). LCMS (m/z): 558.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08383644B2 |
| Source dataset | uspto-grants-2013_02 |
| ORD ID | ord-5076513c442d40159d51532e25799007 |
| Source note | uspto-grants-2013_02 |