HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → 4-(3-Chloro-phenylamino)-3-(2,3,4-trimethoxybenzylamino)-1H-pyrazolo[3,4-d]pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | 2,3,4-Trimethoxybenzaldehyde | HCID 75006 | — |
| Reactant | Sodium cyanoborohydride | HCID 5003444 | — |
| Reactant | HCID 178509242 | HCID 178509242 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | 1,3-Dimethyl-2-imidazolidinone | HCID 6661 | — |
| Product | 4-(3-Chloro-phenylamino)-3-(2,3,4-trimethoxybenzylamino)-1H-pyrazolo[3,4-d]pyrimidine | HCID 19610586 | — |
Reaction Steps
Analogously to Example 21, 1.00 mmol of 3-amino-4-(3-chloro-phenylamino)-1H-pyrazolo[3,4-d]pyrimidine in 26 ml of methanol, 13 ml of DMEU and 3.0 mmol of acetic acid are first reacted with 2,3,4-trimethoxy-benzaldehyde and then reduced with 7.00 mmol of NaCNBH3 (5-7 days). 4-(3-Chloro-phenylamino)-3-(2,3,4-trimethoxybenzylamino)-1H-pyrazolo[3,4-d]pyrimidine is obtained; m.p. 168-169° C.; HPLC: TRet (Grad5-40)=20.2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05981533 |
| Source dataset | uspto-grants-1999_11 |
| ORD ID | ord-3ea61af868d246909f1ddc7625908db2 |
| Source note | uspto-grants-1999_11 |