-A-A- represents the group -CHR 4 -CHR 5 - or -CR 4 =CR 5 -, R 3 , R 4 and R 5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, cyano, aryloxy, -B-B- represents the group -CHR 6 -CHR 7 - or an alpha- or beta- oriented group:
where R 6 and R 7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R 8 and R 9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, or R 8 and R 9 together comprise a carbocyclic or heterocyclic ring structure, or R 8 and R 9 together with R 6 or R 7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring, their intermediates and processes for preparing them.
摘要:
Compounds of Formula II: and compounds of Formula IV: wherein
-A-A- represents the group -CHR 4 -CHR 5 - or -CR 4 =CR 5 - R 3 , R 4 and R 5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxy carbonyl, cyano, aryloxy, R 1 represents an alpha-oriented lower alkoxycarbonyl or hydroxycarbonyl radical, -B-B- represents the group -CHR 6 -CHR 7 - or an alpha- or beta- oriented group:
where R 6 and R 7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R 8 and R 9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryioxy, or R 8 and R 9 together comprise a carbocyclic or heterocyclic ring structure, or R 8 or R 9 together with R 6 or R 7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring, and R 2 is lower alkylsulfonyloxy or acyloxy or a halide and process for preparing them.
摘要:
Compounds of Formula VIII wherein -A-A- represents the group -CHR4-CHR5- or -CR4=CR5-, R3, R4 and R5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, cyano, aryloxy, -B-B- represents the group -CHR6-CHR7- or an alpha- or beta- oriented group: where R6 and R7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R8 and R9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, or R8 and R9 together comprise a carbocyclic or heterocyclic ring structure, or R8 and R9 together with R6 or R7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring, their intermediates and processes for preparing them.
摘要:
Compounds of Formula II: and compounds of Formula IV: wherein -A-A- represents the group -CHR4-CHR5- or -CR4=CR5- R3, R4 and R5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxy carbonyl, cyano, aryloxy, R1 represents an alpha-oriented lower alkoxycarbonyl or hydroxycarbonyl radical, -B-B- represents the group -CHR6-CHR7- or an alpha- or beta- oriented group: where R6 and R7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R8 and R9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryioxy, or R8 and R9 together comprise a carbocyclic or heterocyclic ring structure, or R8 or R9 together with R6 or R7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring, and R2 is lower alkylsulfonyloxy or acyloxy or a halide and process for preparing them.
摘要:
Multiple novel reaction schemes, novel process steps and intermediates are provided for the synthesis of epoxymexrenone and other compounds of formula (I), wherein: -A-A- represents the group -CHR 4 -CHR 5 - or CR 4 -CR 5 -; R 3 , R 4 and R 5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, cyano, aryloxy; R 1 represents an alpha-oriented lower alkoxycarbonyl or hydroxyalkyl radical, -B-B- represents the group -CHR 6 -CHR 7 - or an alpha- or beta- oriented group of formula (III), where R 6 and R 7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R 8 and R 9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, or R 8 and R 9 together comprise a carbocyclic or heterocyclic ring structure, or R 8 or R 9 together with R 6 or R 7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring.
-A-A- represents the group -CHR 4 -CHR 5 - or -CR 4 =CR 5 -, R 3 , R 4 and R 5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, cyano, aryloxy, R 1 represents an alpha-oriented lower alkoxycarbonyl or hydroxycarbonyl radical, -B-B- represents the group -CHR 6 -CHR 7 - or an alpha- or beta- oriented group:
where R 6 and R 7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R 8 and R 9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, or R 8 and R 9 together comprise a carbocyclic or heterocyclic ring structure, or R 8 or R 9 together with R 6 or R 7 comprise a carbocyclic or heterocyclic ring structure fused to the pentacyclic D ring, their intermediates and processes for preparing them.