HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,3-Dibromo-5,5-dimethylhydantoin → HCID 69306767, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,3-Dibromo-5,5-dimethylhydantoin | HCID 6479 | — |
| Reactant | 2,4,6-Trimethylpyridine | HCID 7953 | — |
| Reactant | HCID 11285024 | HCID 11285024 | — |
| Product | HCID 69306767 | HCID 69306767 | 100.1% |
Reaction Steps
42 g of (20S)-4,4-dimethyl-20-[((triisopropylsilyl)oxy)methyl]-pregna-5-en-3β-ol benzoate were treated with 13.7 g 1,3-dibrom-5,5-dimethyl-hydantoin and 18 ml 2,4,6-trimethylpyridine as described in Example 1e) to give (without purification by column chromatography) 41.9 g of (20S)-4,4-dimethyl-20-[((triisopropylsilyl)oxy)methyl]-pregna-5,7-dien-3β-ol benzoate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06916921B2 |
| Source dataset | uspto-grants-2005_07 |
| ORD ID | ord-bf7064a6b5e7451fb25ae9c270f1478e |
| Source note | uspto-grants-2005_07 |