摘要:
A process for the preparation of a the formula (I): which process comprises the intramolecular cyclopropanation of an epoxide of me formula (II); in the presence of 0.05 to 0.75 equivalents of a secondary amine base and at least one equivalent of an alkyl lithium base, wherein R R1, R2 and R3 are each hydrogen or C1-4 alkyl or R1 and R2 are linked to form- a C3-7 cycloaUcyl or C3-7 cycloalkenyl ring.
摘要:
A process for the preparation of a the formula (I): which process comprises the intramolecular cyclopropanation of an epoxide of me formula (II); in the presence of 0.05 to 0.75 equivalents of a secondary amine base and at least one equivalent of an alkyl lithium base, wherein R R1, R2 and R3 are each hydrogen or C1-4 alkyl or R1 and R2 are linked to form- a C3-7 cycloaUcyl or C3-7 cycloalkenyl ring.
摘要:
A process for the preparation of a compound of formula (I), or a salt, hydrate or solvate thereof; wherein R1 and R2 are each independently hydrogen, or C1-6 alkyl groups or R1 and R2 are linked and, together with the cyclopentane carbon atoms to which they are attached, form a cyclopropyl ring.
摘要:
A process for the preparation of a compound of formula (I), or a salt, hydrate or solvate thereof; wherein R1 and R2 are each independently hydrogen, or C1-6 alkyl groups or R1 and R2 are linked and, together with the cyclopentane carbon atoms to which they are attached, form a cyclopropyl ring.
摘要:
A process is provided for the preparation of branched-chain ribonucleosides of formula (I) from the 1,2-anhydro derivatives of formula (II). The compounds of formula (I) are inhibitors of HCV polymerase useful in the treatment of HCV infection.
摘要:
The present invention relates to processes for preparing protected glyceraldehydes, such as (hydroxy)methanesulfonates. In addition, the invention relates to thiadiazoles, particularly 3-diooxolanyl-thiadiazoles.