Synthesis of (S,5Z,8E,10E)-12-Hydroxyheptadeca-5,8,10-trienoic Acid (12S-HHT) and its Analogues
摘要:
Natural 12S-HHT and its analogues were synthesized for study of structure and activity relationship toward the BLT2 receptor. The Suzuki-Miyaura coupling was used for construction of the 8E, 10E-diene moiety of 12S-HHT and analogues of (12R)- and 12-keto-types, whereas Wittig reaction was used for the synthesis of (8Z)- and (8Z, 12R)-isomers.
Silver‐Catalyzed Tandem Cyclization for Syntheses of Azaoxa‐ and Diazaspirocycles**
作者:Momoka Shimaoka、Masahiro Sai
DOI:10.1002/ejoc.202201404
日期:2023.3
Therefore, researchers have tried to develop efficient catalytic systems to access this scaffold. This work reports the synthesis of various azaoxa- and diazaspirocycles from alkynes bearing two pendant nitrogen- and oxygen-based nucleophiles under silver catalysis.
Highly Chemoselective Deprotection of the 2,2,2-Trichloroethoxycarbonyl (Troc) Protecting Group
作者:Barry M. Trost、Christopher A. Kalnmals、Jacob S. Tracy、Wen-Ju Bai
DOI:10.1021/acs.orglett.8b03642
日期:2018.12.21
of the 2,2,2-trichloroethoxycarbonyl (Troc) protectinggroup are reported. Using trimethyltin hydroxide in 1,2-dichloroethane, Troc-protected alcohols, thiols, and amines can be selectively unmasked in the presence of various functionalities that are incompatible with the reducing conditions traditionally used to remove the Troc group. This mild deprotection protocol tolerates a variety of other hydrolytically
Natural 12S-HHT and its analogues were synthesized for study of structure and activity relationship toward the BLT2 receptor. The Suzuki-Miyaura coupling was used for construction of the 8E, 10E-diene moiety of 12S-HHT and analogues of (12R)- and 12-keto-types, whereas Wittig reaction was used for the synthesis of (8Z)- and (8Z, 12R)-isomers.