82529-87-1Relevant articles and documents
Synthesis of (+)-altholactone, (+)-7-epi-altholactone, (?)-etharvensin, and (+)-alumheptolide-A using Pd-catalyzed carbonylation
Miyazawa, Yuki,Hattori, Yasunao,Makabe, Hidefumi
, p. 4024 - 4027 (2018/10/05)
Syntheses of (+)-altholactone isolated from Goniothalamus giganteus and its C-7 epimer (+)-7-epi-altholactone, (?)-etharvensin and (+)-alumheptolide-A were achieved. The lactone ring of these compounds was constructed using Pd-catalyzed carbonylation.
Effect of ring fusion stereochemistry on double bond geometry. Unexpected formation of nine-membered cyclic ether with E-configurated double bond through RCM
Ghosh, Subrata,Hossain, Md. Firoj,Malik, Chanchal K.,Maity, Soumitra
experimental part, p. 9159 - 9164 (2011/01/12)
Formation of a nine-membered cyclic ether with E-configurated double bond was observed during construction of 5-9-5 tricycles through RCM of dienes. Ring fusion stereochemistry in the products oxonenes was found to have profound influence on the olefin geometry. cis-anti-cis 5-9-5 tricycle was obtained with Z-configurated olefin while cis-syn-cis 5-9-5 system was obtained with E- as well as Z-configurated double bond with the former predominating.
Synthesis of pyrenolide D analogues
Robertson, Jeremy,Stevens, Kiri,Naud, Sébastien
scheme or table, p. 2083 - 2086 (2009/04/17)
We present a short, enantiospecific synthesis of four hydroxylated analogues of pyrenolide D from D-glucose based on furan oxidative spirocyclisation. Georg Thieme Verlag Stuttgart.
Regioselective deprotection of p-methoxybenzyl ethers of furanose derivatives
Bouzide, Abderrahim,Sauve, Gilles
, p. 2883 - 2886 (2007/10/03)
Reaction of per-p-methoxybenzylated hexofuranoses and pentofuranoses with either a catalytic amount of tin chloride dihydrate (SnCl2·2H2O) or 0.5-10% solution of trifluoroaoetic acid in dichloromethane afforded regioselectively the corresponding monosaccharide derivatives having a single free hydroxyl group at C(5) in good yields.
STEREOSELECTIVE SYNTHESIS OF THE MIDDLE (C10-C17) AND RIGHT (C18-C30) SEGMENTS, AND THEIR COUPLING TO COMPLETE A FORMAL SYNTHESIS OF THE POLYETHER ANTIBIOTIC SALINOMYCIN
Horita, Kiyoshi,Nagato, Satoshi,Oikawa, Yuji,Yonemitsu, Osamu
, p. 3253 - 3256 (2007/10/02)
The middle (C10-C17) and right (C18-C30) segments of the polyether antibiotic salinomycin were stereoselectively synthesized from D-glucose, D-mannitol, and ethyl L-lactate.Coupling of the two segments followed by construction of the bisketal ring system gave the C10-C30 segment, which was already converted to salinomycin by Kishy.