Technology Process of (2R,3R,4R,5R)-2-benzyloxymethyl-5-[(1S)-5-{(5S,7S)-1,6-dioxa-spiro[4.5]dec-7-yl}-1-hydroxy-pentyl]-3,4-dihydroxy-pyrrolidine-1-carboxylic acid benzyl ester
There total 10 articles about (2R,3R,4R,5R)-2-benzyloxymethyl-5-[(1S)-5-{(5S,7S)-1,6-dioxa-spiro[4.5]dec-7-yl}-1-hydroxy-pentyl]-3,4-dihydroxy-pyrrolidine-1-carboxylic acid benzyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
trifluoroacetic acid;
In
tetrahydrofuran; water;
at 70 ℃;
for 5h;
DOI:10.1002/chem.200600202
- Guidance literature:
-
Multi-step reaction with 7 steps
1: aq. NaHCO3; Na2CO3 / 0 - 20 °C
2: 89 percent / TENPO; aq. KBr; NaOCl / NaHCO3 / acetone / 0 °C
3: 81 percent / [(benzotriazol-1-yloxy)tripyrrolidinophosphonium]PF6; EtN(i-Pr)2 / CH2Cl2
4: tetrahydrofuran / 20 °C
5: DIBAL-H / diethyl ether / 0 °C
6: CF3C(O)CH3; oxone; aq. Na2CO3 / acetonitrile / 0 °C
7: aq. CF3CO2H / tetrahydrofuran / 65 °C
With
Oxone; sodium hypochlorite; 1,1,1-trifluoro-2-propanone; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; diisobutylaluminium hydride; sodium hydrogencarbonate; sodium carbonate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; potassium bromide;
sodium hydrogencarbonate;
In
tetrahydrofuran; diethyl ether; dichloromethane; acetone; acetonitrile;
DOI:10.1002/anie.200352857
- Guidance literature:
-
Multi-step reaction with 10 steps
1: 84 percent / NaH; Bu4NI / tetrahydrofuran / 20 °C
2: 87 percent / [1,3-dimesitylimidazolidin-2-yl]Cl2(PCy3)Ru=CHPh / CH2Cl2 / Heating
3: aq, NaOH / ethanol / Heating
4: aq. NaHCO3; Na2CO3 / 0 - 20 °C
5: 89 percent / TENPO; aq. KBr; NaOCl / NaHCO3 / acetone / 0 °C
6: 81 percent / [(benzotriazol-1-yloxy)tripyrrolidinophosphonium]PF6; EtN(i-Pr)2 / CH2Cl2
7: tetrahydrofuran / 20 °C
8: DIBAL-H / diethyl ether / 0 °C
9: CF3C(O)CH3; oxone; aq. Na2CO3 / acetonitrile / 0 °C
10: aq. CF3CO2H / tetrahydrofuran / 65 °C
With
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; Oxone; sodium hydroxide; sodium hypochlorite; 1,1,1-trifluoro-2-propanone; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; tetra-(n-butyl)ammonium iodide; sodium hydride; diisobutylaluminium hydride; sodium hydrogencarbonate; sodium carbonate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; potassium bromide;
sodium hydrogencarbonate;
In
tetrahydrofuran; diethyl ether; ethanol; dichloromethane; acetone; acetonitrile;
DOI:10.1002/anie.200352857