78844-86-7Relevant academic research and scientific papers
Total synthesis of epoxyquinols A, B, and C and epoxytwinol A and the reactivity of a 2H-pyran derivative as the diene component in the Diels-Alder reaction
Shoji, Mitsuru,Imai, Hiroki,Mukaida, Makoto,Sakai, Ken,Kakeya, Hideaki,Osada, Hiroyuki,Hayashi, Yujiro
, p. 79 - 91 (2007/10/03)
(Chemical Equation Presented). Full details of two versions of the total synthesis of epoxyquinols A, B, and C and epoxytwinol A (RKB-3564D) are described. In the first-generation synthesis, the HfCL4-mediated diastereoselective Diels-Alder rea
Novel non-peptide inhibitors targeting death receptor-mediated apoptosis
Kakeya, Hideaki,Miyake, Yasunobu,Shoji, Mitsuru,Kishida, Satoshi,Hayashi, Yujiro,Kataoka, Takao,Osada, Hiroyuki
, p. 3743 - 3746 (2007/10/03)
We have previously reported that ECH, (2R, 3R, 4S)-2,3-epoxy-4-hydroxy-5-hydroxymethyl-6-(1E)-propenyl-cyclohex-5-en-1-one inhibits Fas-mediated apoptosis by blocking self-activation of pro-caspase-8 in the death-inducing signaling complex (DISC). A series of ECH derivatives were asymmetrically synthesized via key synthetic intermediates obtained from lipase-catalyzed kinetic resolution. Inhibitory activities of the derivatives towards death receptor-mediated apoptosis both in type I and type II cells were investigated, revealing that novel non-peptide inhibitors, RKTS-33 and RKTS-34, are effective as ECH.
A practical total synthesis of both enantiomers of epoxyquinols A and B
Shoji, Mitsuru,Kishida, Satoshi,Takeda, Mitsuhiro,Kakeya, Hideaki,Osada, Hiroyuki,Hayashi, Yujiro
, p. 9155 - 9158 (2007/10/03)
A practical total synthesis of both enantiomers of epoxyquinols A and B has been developed. Key reactions are the chromatography-free preparation of an iodolactone by using acryloyl chloride as dienophile in the Diels-Alder reaction of furan, the lipase-mediated kinetic resolution of a cyclohexenol derivative, and a modified procedure for α-iodonation of a cyclohexenone.
Total synthesis of (+)-epoxyquinols A and B
Shoji, Mitsuru,Yamaguchi, Junichiro,Kakeya, Hideaki,Osada, Hiroyuki,Hayashi, Yujiro
, p. 3192 - 3194 (2007/10/03)
A highly stereoselective HfCl4-mediated Diels-Alder reaction of furan and the chiral acrylate ester of Corey's auxiliary to subsequently give 1, and the realization of the postulated biosynthetic pathway for the construction of epoxyquinols A a
Synthesis of (3R)- and (3S)-fluoro-(4R,5R)-dihydroxy-1-cyclohexene-1- carboxylic acids: The (3R)- and (3S)-fluoro analogues of (-)-shikimic acid
Brettle,Cross,Frederickson,Haslam,MacBeath,Davies
, p. 1275 - 1278 (2007/10/03)
(3R)-and (3S)-Fluoro-(4R,5R)-dihydroxy-1-cyclohexene-1-carboxylic acids (the (3R)- and (3S)-fluoro analogues of (-)-shikimic acid) have been synthesised from (-)-shikimic acid via an intermediate epoxide (a fungal metabolite from Chalara microspora) that
The shikimate pathway. Part 9. Halogenation at C-3 of the shikimate nucleus
Brettle, Roger,Cross, Richard,Frederickson, Martyn,Haslam, Edwin,MacBeath, Fiona S.,Davies, Gareth M.
, p. 10547 - 10556 (2007/10/03)
The use of (-)-shikimic acid as starting material in the syntheses of a series of C-3 halogenated derivatives including the analogous 3α- and 3β-fluoro and 3β-chloro acids is described together with the first stereospecific synthesis of (-)-3-epi-shikimic acid directly from the parent acid.
Synthesis of (-)-3(R)-amino-4(R),5(R)-dihydroxy-1-cyclohexene-1-carboxylic acid: The 3(R)-amino analogue of (-)-shikimic acid
Brettle, Roger,Cross, Richard,Frederickson, Martyn,Haslam, Edwin,Davies, Gareth M.
, p. 291 - 294 (2007/10/03)
(-)-3(R)-Amino-4(R),5(R)-dihydroxy-1-cyclohexene-1-carboxylic acid (the 3(R)-amino analogue of (-)-shikimic acid) has been synthesised from (-)-shikimic acid in seven steps. Copyright
ON THE STRUCTURE OF NATURALLY-OCCURRING (+)-METHYL 3,4-ANHYDROSHIKIMATE
Wood, Harold B.,Ganem, Bruce
, p. 6257 - 6258 (2007/10/02)
A two-step synthesis of enantiomerically pure (+)-methyl 3,4-anhydroshikimate 2 from (-)- methyl shikimate 3 is described, leading to a revision in the properties reported for this natural product.
SHIKIMIC ACIDS FROM FURAN; METHODS OF STEREOCONTROLLED ACCESS TO 3,4,5-TRIOXIGENATED CYCLOHEXENES
Rajapaksa, D.,Keay, B. A.,Rodrigo, R.
, p. 826 - 828 (2007/10/02)
Oxabicycloheptenes 1 and 2 are converted to 3,4,5-oxigenated cyclohexenes by stereocontrolled hydroxylations and epoxidations coupled with reverse-Michael cleavage of the oxabicyclo system.Three epimers of shikimic acid are synthesized by these methods.
