Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 21275436 | HCID 21275436 | — |
| Product | HCID 21275434 | HCID 21275434 | — |
Reaction Steps
To the 8-benzyloxycarbonyl-2-dimethylamino-2,8-diazaspiro[4,5]decane-1,3-dione (0.4 g) which was obtained in Example 18 was added 6N hydrochloric acid (20 ml), and was followed by heating at 100° C. for 3 hours. The solvent was then evaporated; the resulting residual solid was recrystallized from ethanol-ethyl acetate to obtain 0.3 g of a colorless crystal having a melting point of from 257° to 260° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04804665 |
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| Source dataset | uspto-grants-1989_02 |
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| ORD ID | ord-412a9c4074654fcc855e1cd11d7a5a9b |
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| Source note | uspto-grants-1989_02 |
|---|
