Technology Process of 7-((2R,4aR,5R,7aR)-2-(1,1-difluoropentyl)-2-hydroxy-6-oxo-octahydrocyclopenta[b]pyran-5-yl)heptanoate guanidinium
There total 2 articles about 7-((2R,4aR,5R,7aR)-2-(1,1-difluoropentyl)-2-hydroxy-6-oxo-octahydrocyclopenta[b]pyran-5-yl)heptanoate guanidinium which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: methyllithium / formaldehyde diethyl acetal; tetrahydrofuran / -70 - -60 °C / Inert atmosphere
1.2: 0.5 h / -50 - -40 °C / Inert atmosphere
1.3: -60 - -50 °C / Inert atmosphere
2.1: hydrogen / palladium 10% on activated carbon / ethyl acetate; water / 60 °C / 3000.3 Torr
3.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / 1 h / -70 - -60 °C
3.2: -70 - 0 °C
4.1: trifluoroacetic acid / acetonitrile / 16 h / 15 - 30 °C
5.1: Lipase PS SD / acetone / 22 h / 50 - 60 °C / pH 8 / Enzymatic reaction
6.1: sodium methylate / methanol / 1 h / 25 °C
6.2: 1 h / 25 °C
With
oxalyl dichloride; methyllithium; hydrogen; sodium methylate; dimethyl sulfoxide; trifluoroacetic acid;
palladium 10% on activated carbon;
In
tetrahydrofuran; methanol; formaldehyde diethyl acetal; dichloromethane; water; ethyl acetate; acetone; acetonitrile;
- Guidance literature:
-
guanidine hydrochloride;
With
sodium methylate;
In
methanol;
at 25 ℃;
for 1h;
lubiprostone;
In
methanol;
at 25 ℃;
for 1h;