Stereoselective isomerization of 10-arylsulfenate-11,12-dehydroretinoids to 9-cis-retinoids
摘要:
The C-7-C-12 triene fragment of 9-cis-retinoids 8 was stereoselectively generated by treatment of propargylic alcohol 3 with phenylsulfenyl chloride/triethylamine at -78 degrees C, followed by stereospecific reduction of the resulting vinylsulfoxide (t-BuLi, MeLi, MeOH, -78 degrees C). Thus, 9-cis-retinoic acid 2, the natural ligand of the retinoid X receptor (RXR) was straightforwardly synthesized from 8 in two steps. (C) 1998 Elsevier Science Ltd. All rights reserved.
Stereoselective isomerization of 10-arylsulfenate-11,12-dehydroretinoids to 9-cis-retinoids
摘要:
The C-7-C-12 triene fragment of 9-cis-retinoids 8 was stereoselectively generated by treatment of propargylic alcohol 3 with phenylsulfenyl chloride/triethylamine at -78 degrees C, followed by stereospecific reduction of the resulting vinylsulfoxide (t-BuLi, MeLi, MeOH, -78 degrees C). Thus, 9-cis-retinoic acid 2, the natural ligand of the retinoid X receptor (RXR) was straightforwardly synthesized from 8 in two steps. (C) 1998 Elsevier Science Ltd. All rights reserved.