140193-76-6Relevant articles and documents
A formal synthesis of thymine polyoxin C
Harding, Kenn E.,Southard, Jack M.
, p. 1845 - 1854 (2007/10/03)
A convergent stereoselective synthesis of thymine polyoxin C 1 has been conducted utilizing the benzylimine of D-glyceraldehyde acetonide 7 as a chiral controller and 2-trimethylsilyloxy furan 8 as a four-carbon synthon. In the presence of catalytic BF3·OEt2, 8 has been found to add to 7 with a moderately high level of stereoselectivity. Intermediate 4-(aminoalkyl)-2-butenolide 6 proved to be an ideal candidate for elaboration to 3.
Diastereoselective synthesis of a novel lactam peptidomimetic exploiting vinylogous Mannich addition of 2-silyloxyfuran reagents
Battistini, Lucia,Rassu, Gloria,Pinna, Luigi,Zanardi, Franca,Casiraghi, Giovanni
, p. 765 - 773 (2007/10/03)
The total synthesis of a potential inhibitor of HIV-protease-the chiral nonracemic six-membered hydroxy lactam 6-has been accomplished, that involves, as key reaction, the highly diastereoselective vinylogous Mannich addition of furan-based silyloxy diene 7 to glyceraldeyde imine 8.
Total synthesis of 1,5-dideoxy-1,5-iminoalditols
Rassu, Gloria,Pinna, Luigi,Spanu, Pietro,Culeddu, Nicola,Casiraghi, Giovanni,Fava, Giovanna Gasparri,Ferrari, Marisa Belicchi,Pelosi, Giorgio
, p. 727 - 742 (2007/10/02)
Enantiomerically pure 1,5-dideoxy-1,5-imino-D-glycero-D-allo-heptitol (10) has been synthesized in ca. 9% overall yield by utilizing 2,3-O-isopropylidene-D-glyceraldehyde-N-benzylimine (1) as a chiral source and 2-(trimethylsiloxy)furan (2) as a homologative reactant. The opening move was the preparation of properly protected seven-carbon butenolide 4, followed by diastereoselective anti, cis-dihydroxylation of the lactone double bond and furanose-to-azapyranose ring expansion. This generated a piperidine intermediate 7, the stereochemistry of which was secured by a single crystal X-ray analysis of its diacetate 9.