HuagongsheHuagongshe Chemistry Print Report · For research reference only
(3R-trans)-[(6-cyano-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl)phenylamino]acetic acid, ethyl ester → (3R-trans)-4-[N-(2-Furanylmethyl)phenylamino]-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | (3R-trans)-[(6-cyano-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-4-yl)phenylamino]acetic acid, ethyl ester | HCID 10738551 | — |
| Reactant | (1aR,7bR)-2,2-Dimethyl-1a,7b-dihydro-2H-oxireno[2,3-c]chromene-6-carbonitrile | HCID 10987295 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | (3R-trans)-4-[N-(2-Furanylmethyl)phenylamino]-3,4-dihydro-3-hydroxy-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile | HCID 10667126 | — |
Reaction Steps
The title compound was prepared from (1aR-cis)-1a,7b-dihydro-2,2-dimethyl-2H-oxireno-[c][1]benzopyran-6-carbonitrile (the title A compound of Example 3) and the title A compound by the same procedure as described for the title compound of Example 1. The product was obtained as a colorless solid (1.07 g, 72%), mp 134°-135° C. [α]D =+92.20° (c=0.78, MeOH). Analysis calculated for C23H22N2O3 · 0.02 H2O: C, 73.70; H, 5.93; N, 7.47. Found: C, 73.65; H, 5.63; N, 7.52.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05837702 |
| Source dataset | uspto-grants-1998_11 |
| ORD ID | ord-b0325644236041989bd607add950cf4d |
| Source note | uspto-grants-1998_11 |