Technology Process of {(2S,3R,6S)-6-[(1S,4S)-1-Benzyloxy-4-hydroxy-4-((S)-5-methoxy-tetrahydro-furan-2-yl)-butyl]-3-hydroxy-tetrahydro-pyran-2-yl}-acetic acid ethyl ester
There total 9 articles about {(2S,3R,6S)-6-[(1S,4S)-1-Benzyloxy-4-hydroxy-4-((S)-5-methoxy-tetrahydro-furan-2-yl)-butyl]-3-hydroxy-tetrahydro-pyran-2-yl}-acetic acid ethyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 9 steps
1: AD-mix-α; MeSO2NH2; H2O / 2-methyl-propan-2-ol / 24 h / 0 °C
2: 10-camphorsulfonic acid / methanol / 3 h / -5 °C
3: 93 percent / NaH / tetrahydrofuran / 16 h / -15 - 20 °C
4: Zn(OTf)2 / 1,2-dichloro-ethane / 2 h / 50 °C
5: 10-camphorsulfonic acid / CH2Cl2 / 1 h / 20 °C
6: N-methylmorpholine / CH2Cl2 / 5 h / 20 °C
7: MeI; aq. NaHCO3 / acetonitrile / 35 h / 20 °C
8: 87 percent / SmI2 / methanol; tetrahydrofuran / 0.25 h / -5 °C
9: 93 percent / 10-camphorsulfonic acid / methanol / 30 h / 0 °C
With
4-methyl-morpholine; AD-mix-α; samarium diiodide; methanesulfonamide; (1S)-10-camphorsulfonic acid; water; zinc trifluoromethanesulfonate; sodium hydride; sodium hydrogencarbonate; methyl iodide;
In
tetrahydrofuran; methanol; dichloromethane; 1,2-dichloro-ethane; acetonitrile; tert-butyl alcohol;
1: Sharpless dihydroxylation / 6: hetero-Michael addition;
DOI:10.1002/anie.200290038
- Guidance literature:
-
Multi-step reaction with 10 steps
1: 99 percent / 10-camphorsulfonic acid / methanol / 1 h / 20 °C
2: AD-mix-α; MeSO2NH2; H2O / 2-methyl-propan-2-ol / 24 h / 0 °C
3: 10-camphorsulfonic acid / methanol / 3 h / -5 °C
4: 93 percent / NaH / tetrahydrofuran / 16 h / -15 - 20 °C
5: Zn(OTf)2 / 1,2-dichloro-ethane / 2 h / 50 °C
6: 10-camphorsulfonic acid / CH2Cl2 / 1 h / 20 °C
7: N-methylmorpholine / CH2Cl2 / 5 h / 20 °C
8: MeI; aq. NaHCO3 / acetonitrile / 35 h / 20 °C
9: 87 percent / SmI2 / methanol; tetrahydrofuran / 0.25 h / -5 °C
10: 93 percent / 10-camphorsulfonic acid / methanol / 30 h / 0 °C
With
4-methyl-morpholine; AD-mix-α; samarium diiodide; methanesulfonamide; (1S)-10-camphorsulfonic acid; water; zinc trifluoromethanesulfonate; sodium hydride; sodium hydrogencarbonate; methyl iodide;
In
tetrahydrofuran; methanol; dichloromethane; 1,2-dichloro-ethane; acetonitrile; tert-butyl alcohol;
2: Sharpless dihydroxylation / 7: hetero-Michael addition;
DOI:10.1002/anie.200290038
- Guidance literature:
-
Multi-step reaction with 7 steps
1: 93 percent / NaH / tetrahydrofuran / 16 h / -15 - 20 °C
2: Zn(OTf)2 / 1,2-dichloro-ethane / 2 h / 50 °C
3: 10-camphorsulfonic acid / CH2Cl2 / 1 h / 20 °C
4: N-methylmorpholine / CH2Cl2 / 5 h / 20 °C
5: MeI; aq. NaHCO3 / acetonitrile / 35 h / 20 °C
6: 87 percent / SmI2 / methanol; tetrahydrofuran / 0.25 h / -5 °C
7: 93 percent / 10-camphorsulfonic acid / methanol / 30 h / 0 °C
With
4-methyl-morpholine; samarium diiodide; (1S)-10-camphorsulfonic acid; zinc trifluoromethanesulfonate; sodium hydride; sodium hydrogencarbonate; methyl iodide;
In
tetrahydrofuran; methanol; dichloromethane; 1,2-dichloro-ethane; acetonitrile;
4: hetero-Michael addition;
DOI:10.1002/anie.200290038