Partial Protection of Carbohydrate Derivatives. Part 23.1 Simple,Efficient Procedure for the Preparation of 3′- and 2′-0-(Tetrahydropyran-2-YL)Ribonucleoside Derivatives Involving Highly Regioselective 2′,5′-DI-O-Acylation or that Followed by Acyl Migration on Silica Gel and Subsequent O-(Tetrahydropyran-2-YL)Ation |
| |
摘 要: |
|
|
|