51234-09-4Relevant articles and documents
Evidence for a trianion intermediate in the metalation of 4-hydroxy-6,7-dimethoxy-8-methyl-2-naphthoic acid. methodology and application to racemic 5,5′-didesisopropyl-5,5′-dialkylapogossypol derivatives
Le, Tin Thanh,Chau, Nguyet Trang Thanh,Nguyen, Tai Tan,Brien, Josselin,Thai, Trieu Tien,Nourry, Arnaud,Castanet, Anne-Sophie,Nguyen, Kim Phi Phung,Mortier, Jacques
, p. 601 - 608 (2011)
The metalation of 4-hydroxy-6,7-dimethoxy-8-methyl-2-naphthoic acid (8) affording trianion 6 is presented and applied to the regioselective efficient construction of a series of 5,5′-didesisopropyl-5,5′- dialkylapogossypol derivatives 3 that are potent pa
PROCESSES OF MAKING SESQUITERPENOID TASHIRONIN, ITS ANALOGS AND THEIR USES
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Example 5, (2008/06/13)
The compound having the structure of the formula (genus of compound 1 excluding Tashironin or Debenzoyltashironin) wherein, R1 is H or Bz when no more than three of R8, R9, R10 and R11 are H, or R1 is Bn, (C1-C4) alkyl, or CF3; R2 is H, (C1-C4) aldyl, halide, OC(O) (C1-C4) alkyl, OC(O) Ph, or OCF3; R3 is p-toluene sulfonyloxy, methane sulfonyloxy, C(O) (C1-C4)alkyl, or OC(O) (C1-C4)alkyl, bond α is a single bond, and bond β is a double bond or R3 is O, bond α is a double bond and bond β is a single bond; R4 is H, I, Br, Cl, Si(CH3)3, (C1-C4)alkyl, or OCF3; R5 is OH, OSi (CH3)3, O(C1-C4)alkyl, or OCF3, and bond γ is a single bond, or R5 is O and bond γ is a double bond; R6 is H, (C1-C4) alkyl, or CF3.
Total Synthesis of Pseudopterosin A and E Aglycon
Buszek, Keith R.,Bixby, Dale L.
, p. 9129 - 9132 (2007/10/02)
A total synthesis of the pseudopterosin A and E aglycon 3 has been achieved through a novel intramolecular benzyne Diels-Alder cycloaddition with a substituted cyclohexadiene.
