Technology Process of Chloro-acetic acid (2R,3S,4S,5R,6R)-3,5-diacetoxy-2-acetoxymethyl-6-[(2R,4aR,6S,7R,8R,8aS)-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-phenyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-tetrahydro-pyran-4-yl ester
There total 1 articles about Chloro-acetic acid (2R,3S,4S,5R,6R)-3,5-diacetoxy-2-acetoxymethyl-6-[(2R,4aR,6S,7R,8R,8aS)-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-phenyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-tetrahydro-pyran-4-yl ester which
guide to synthetic route it.
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synthetic route:
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152932-84-8
Chloro-acetic acid (2R,3S,4S,5R,6R)-3,5-diacetoxy-2-acetoxymethyl-6-[(2R,4aR,6S,7R,8R,8aS)-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-phenyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-tetrahydro-pyran-4-yl ester
- Guidance literature:
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With
2,6-di-tert-butyl-4-methylpyridine; bis(cyclopentadienyl)hafnium dichloride; 4 A molecular sieve; silver trifluoromethanesulfonate;
In
dichloromethane;
at 0 - 25 ℃;
for 6h;
DOI:10.1021/ja00072a049
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152932-84-8
Chloro-acetic acid (2R,3S,4S,5R,6R)-3,5-diacetoxy-2-acetoxymethyl-6-[(2R,4aR,6S,7R,8R,8aS)-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-phenyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-tetrahydro-pyran-4-yl ester
- Guidance literature:
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Multi-step reaction with 2 steps
1: 76 percent / NaCNBH3, HCl, 3A-molecular sieves / diethyl ether; tetrahydrofuran / 0.5 h / 0 °C
2: 95 percent / AgClO4, SnCl2, 4A-molecular sieves / diethyl ether; tetrahydrofuran / 1 h / -10 - 0 °C
With
hydrogenchloride; 3 A molecular sieve; 4 A molecular sieve; silver perchlorate; sodium cyanoborohydride; tin(ll) chloride;
In
tetrahydrofuran; diethyl ether;
DOI:10.1021/ja00072a049
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-
152932-84-8
Chloro-acetic acid (2R,3S,4S,5R,6R)-3,5-diacetoxy-2-acetoxymethyl-6-[(2R,4aR,6S,7R,8R,8aS)-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-phenyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy]-tetrahydro-pyran-4-yl ester
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 76 percent / NaCNBH3, HCl, 3A-molecular sieves / diethyl ether; tetrahydrofuran / 0.5 h / 0 °C
2: 95 percent / AgClO4, SnCl2, 4A-molecular sieves / diethyl ether; tetrahydrofuran / 1 h / -10 - 0 °C
3: 80 percent / DAST, NBS / CH2Cl2 / 2 h / -78 - -20 °C
4: 95 percent / Cp2HfCl2, AgOTf, 4A molecular sieves / CH2Cl2 / 18 h / 0 - 25 °C
With
hydrogenchloride; N-Bromosuccinimide; bis(cyclopentadienyl)hafnium dichloride; 3 A molecular sieve; 4 A molecular sieve; silver trifluoromethanesulfonate; silver perchlorate; sodium cyanoborohydride; 4,4'-diaminostilbene-2,2'-disulfonic acid; tin(ll) chloride;
In
tetrahydrofuran; diethyl ether; dichloromethane;
DOI:10.1021/ja00072a049