158010-31-2Relevant academic research and scientific papers
Synthesis of the core structure of apicularen a by transannular cyclization.
Kuehnert, Sven M,Maier, Martin E
, p. 643 - 646 (2002)
[reaction: see text] An approach to the macrocyclic core of apicularen A is described. Thus, cross-coupling of the aryl triflate 7 with the vinylstannane 19 provided the styrene 20. Deprotection led to the dihydroxy acid 22. Through a size-selective macro
Stereoselective total synthesis of cananginones (D-I) using Ireland-Claisen rearrangement as a key step
Kuilya, Tapan Kumar,Chatterjee, Shamba,Goswami, Rajib Kumar
, p. 2905 - 2918 (2014/04/17)
A strategy for stereoselective total synthesis of α-substituted γ-hydroxymethyl γ-butyrolactone containing bioactive natural products cananginones (D-I) has been developed using cheap and commercially available d-mannitol as a chiral pool. The Ireland-Cla
PEGYLATED LIPIDS AND THEIR USE FOR DRUG DELIVERY
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Page/Page column 127-128, (2012/08/07)
The invention provides poly(ethylene glycol)-lipid conjugates for use in drug delivery.
Functionalized Diorganozinc Compounds: Key Reagents for the Synthesis of Enantiomerically Pure 2,5-Disubstituted cis- and trans-Tetrahydrofurans
Berninger, Joern,Koert, Ulrich,Eisenberg-Hoehl, Christina,Knochel, Paul
, p. 1021 - 1028 (2007/10/03)
1,4-Diol derivatives 4a-i were synthesized stereoselectively by either reagent- or catalyst-controlled routes using the addition of functionalized diorganozinc reagents to aldehydes.The stereoselectivities along the reagent-controlled synthetic path were in the range between 80:20 and 95:5.The stereoselectivities along the catalyst route exceeded 95:5.The 1,4-diol derivatives 4 thus obtained were transformed into enantiomerically pure cis- and trans-2,5-disubstituted tetrahydrofurans (16-20) by means of an intramolecular Williamson reaction. - Keywords: Synthesis, stereoselective / Catalysis / Tetrahydrofurans / Dialkylzinc reagents
Total synthesis of (+)-rolliniastatin 1
Koert
, p. 2517 - 2520 (2007/10/02)
The first total synthesis of the naturally occurring acetogenin (+)-rolliniastatin 1 (1) has been achieved. A high degree of stereochemical control in the construction of the bis-THF system was accomplished by chelation controlled addition of functionalized organo-metallic reagents derived from 5 and 11 to α-alkoxy-aldehydes.
