- METHOD FOR PREPARING 42-(DIMETHYLPHOSPHINATE) RAPAMYCIN
-
A method for preparing 42-(dimethylphosphinate) Rapamycin (Ridaforolimus) (I) is provided, which has advantages of high conversion rate and no 31,42-bis(dimethyl phosphinate) Rapamycin (III) generated. In the method of the present invention, Rapamycin (II) is firstly reacted with triethyl chlorosilane in a base condition to form 31,42-bis(triethylsilylether) Rapamycin (IV-b), followed by a selective deprotection process to obtain 31-triethylsilylether Rapamycin (V-b). Next, a phosphorylation reaction is performed by using dimethylphosphinic chloride under a base solution to obtain a crude product. Finally, a deprotection reaction is performed in a diluted sulfuric acid solution to obtain a crude product of Ridaforolimus (I). Since the conversion rate of each step of the method of the present invention is higher than 98%, it indicates that the method of the present invention is suitable for industrial production.
- -
-
-
- Phosphorus-containing compounds and uses thereof
-
This invention concerns a new family of phosphorus-containing compounds containing a moiety JQA- in which: A is absent or is —O—, —S— or —NR2—; Q is absent or (if A is —O—, —S— or —NR2—) Q may be —V—, —OV—, —SV—, or —NR2V—
- -
-
-
