HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → (R)-2-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yloxy]-propionic acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | (L)-ethyl lactate | HCID 92831 | — |
| Reactant | 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-ol | HCID 136030920 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | (R)-2-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yloxy]-propionic acid ethyl ester | HCID 58204720 | — |
Reaction Steps
Following the procedure of Example 426, 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-ol 490 and ethyl-L-lactate were reacted and the crude product was subjected to flash chromatography (SiO2, gradient 0-10% methanol in ethyl acetate) to give (R)-2-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yloxy]-propionic acid ethyl ester as a yellow (315 mg, 66%). LCMS: RT=3.44 min, [M+H]+=412
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08242104B2 |
| Source dataset | uspto-grants-2012_08 |
| ORD ID | ord-239da4af03054e50b32ea1eaca8a6c82 |
| Source note | uspto-grants-2012_08 |