HuagongsheHuagongshe Chemistry Print Report · For research reference only
Trifluoroacetic acid methylene chloride → 3-benzyloxycarbonylamino-6-methyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic Acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Trifluoroacetic acid methylene chloride | HCID 21863450 | — |
| Reactant | 3-benzyloxycarbonylamino-6-methyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic Acid tert-butyl Ester | HCID 69600879 | — |
| Catalyst | Water | HCID 962 | — |
| Product | 3-benzyloxycarbonylamino-6-methyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic Acid | HCID 21979698 | 105.5% |
Reaction Steps
A solution of intermediate 19a (55 mg, 0.138 mmol) in 4 mL 1:1 TFA/CH2Cl2 with 2 drops water was stirred at rt for 12 h. The mixture was concentrated in vacuo, then coevaporated with CCl4 to afford 50 mg of intermediate 19b (quantitative), which was used without further purification in the following step.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07094783B2 |
| Source dataset | uspto-grants-2006_08 |
| ORD ID | ord-87b4f71a3c464d95bdbbcf9b03be006a |
| Source note | uspto-grants-2006_08 |