
Current location:Home > Product > Pharmaceutical API


1,2-Benzdiyne equivalents possess the un...
The present invention generally relates ...
A facile and improved route for the synt...
The invention relates to indol-3-yl-carb...
benzyl 1-(methylsulfonyl)spiro[indoline-3,4’-piperidine]-1‘-carboxylate
1-(methylsulfonyl)spiro[indoline-3,4’-piperidine]
| Conditions | Yield |
|---|---|
|
With
hydrogen;
palladium on activated charcoal;
In
ethanol;
at 65 ℃;
for 5h;
under 2068.6 Torr;
|
93% |
|
With
ammonium formate;
palladium(II) hydroxide/carbon; palladium;
In
acetic acid;
at 50 ℃;
for 3h;
|
93% |
|
With
ammonium formate; acetic acid;
palladium hydroxide on carbon; palladium 10% on activated carbon;
at 50 ℃;
for 3h;
|
93% |
|
With
palladium 10% on activated carbon; hydrogen;
In
ethanol;
|
93% |
|
With
palladium on activated charcoal; ammonium formate;
In
methanol;
for 2h;
Reflux;
|
64% |
isonipecotic acid
1-(methylsulfonyl)spiro[indoline-3,4’-piperidine]
| Conditions | Yield |
|---|---|
|
Multi-step reaction with 7 steps
1: 97 percent / K2CO3 / H2O / 58 h / 22 °C
2: (COCl)2 / toluene; dimethylformamide / 16 h / 18 °C
3: 94 percent / H2, DIEA, thioanisole / Pd/C / toluene / 22 h / 20 °C / 2068.6 Torr
4: 99 percent / TFA / CH2Cl2 / 17 h / 35 °C
5: NaBH4 / toluene / 0.5 h / -2 °C
6: DIEA / tetrahydrofuran / 2 h / 5 - 8 °C
7: 93 percent / H2 / Pd-C / ethanol / 5 h / 65 °C / 2068.6 Torr
With
sodium tetrahydroborate; oxalyl dichloride; methyl-phenyl-thioether; hydrogen; potassium carbonate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid;
palladium on activated charcoal;
In
tetrahydrofuran; ethanol; dichloromethane; water; N,N-dimethyl-formamide; toluene;
|
|
|
Multi-step reaction with 7 steps
1: lithium aluminium tetrahydride / tetrahydrofuran / 20 °C
2: potassium carbonate / 20 °C
3: pyridinium chlorochromate / dichloromethane / 20 °C
4: trifluoroacetic acid / dichloromethane
5: sodium tetrahydroborate / methanol
6: N-ethyl-N,N-diisopropylamine / tetrahydrofuran
7: palladium 10% on activated carbon; hydrogen / ethanol
With
sodium tetrahydroborate; lithium aluminium tetrahydride; palladium 10% on activated carbon; hydrogen; potassium carbonate; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; trifluoroacetic acid;
In
tetrahydrofuran; methanol; ethanol; dichloromethane;
|
benzyl 1-(methylsulfonyl)spiro[indoline-3,4’-piperidine]-1‘-carboxylate
isonipecotic acid
1-benzyloxycarbonylpiperidine-4-carboxylic acid
N-(benzyloxycarbonyl)piperidine-4-carboxaldehyde
C28H37N3O6S
Ibutamoren
