HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 86741716, compound → HCID 86741715, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 86741716 | HCID 86741716 | — |
| Catalyst | HCID 178418406 | HCID 178418406 | — |
| Product | HCID 86741715 | HCID 86741715 | — |
Reaction Steps
Oxidation of 4-hydroxypyrano[3,4-b]indole acetic acid methyl ester 15 with manganese dioxide, followed by hydrolysis, afforded 4-oxopyrano[3,4-b]-indole acetic acid 18. When 15 was treated with urea in acidified aqueous tetrahydrofuran, a quantitative conversion to 4-ureidopyrano[3,4-b]indole acetic acid methyl ester 13 was achieved.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04748252 |
| Source dataset | uspto-grants-1988_05 |
| ORD ID | ord-9e8463d8260e4baeb2d66f3da3b2d7df |
| Source note | uspto-grants-1988_05 |