96405-62-8Relevant articles and documents
Synthesis of (+)-goniopypyrone and (+)-goniotriol using Pd-catalyzed carbonylation
Miyazawa, Yuki,Sugimoto, Makoto,Tanaka-Oda, Ayumi,Makabe, Hidefumi
, (2019/08/16)
Syntheses of (+)-goniopypyrone and (+)-goniotriol isolated from Goniothalamus giganteus were achieved. The key steps involve Pd-catalyzed carbonylation for lactone ring formation and diastereoselective reduction of ynone using the (R)-CBS catalyst and borane dimethyl sulfide complex.
Stereoselective synthesis of (+)-goniodiol, (+)-goniotriol, (-)-goniofupyrone, and (+)-altholactone using a catalytic asymmetric hetero-Diels-Alder/allylboration approach
Favre, Annaick,Carreaux, Francois,Deligny, Michael,Carboni, Bertrand
experimental part, p. 4900 - 4907 (2009/06/06)
The stereoselective total synthesis of several members of the styryllactone family was achieved efficiently from common intermediate 8, prepared by a catalytic asymmetric inverse-electron-demand hetero-Diels-Alder/allylboration sequence. The transformatio
Stereoselective total synthesis of bioactive styryllactones (+)-goniofufurone, (+)7-epi-goniofufurone, (+)-goniopypyrone, (+)-goniotriol, (+)-altholactone, and (-)etharvensin
Prasad, Kavirayani R.,Gholap, Shivajirao L.
, p. 2 - 11 (2008/09/17)
(Chemical Equation Presented) Stereoselective total synthesis of biologically active styryllactones 7-epi-goniofufurone, goniofufurone, goniopypyrone, goniotriol, altholactone, and etharvensin was achieved in high overall yields from a common intermediate
Stereocontrolled syntheses of novel styryl lactones, (+)-goniodiol, (+)- goniotriol, (+)-8-acetylgoniotriol, (+)-goniofufurone, (+)-9- deoxygoniopypyrone, (+)-goniopypyrone, and (+)-altholactone from common intermediates and cytotoxicity of their congener
Tsubuki, Masayoshi,Kanai, Kazuo,Nagase, Hiromasa,Honda, Toshio
, p. 2493 - 2514 (2007/10/03)
Concise syntheses of (+)-goniodiol, (+)-goniotriol, (+)-8- acetylgoniotriol, (+)-goniofufurone, (+)-9-deoxygoniopypyrone, (+)- goniopypyrone, and (+)-altholactone and their congeners from chiral lactonic aldehydes 27 and 36 as common intermediates are des
Total synthesis of antitumor Goniothalamus styryllactones
Surivet, Jean-Philippe,Vatele, Jean-Michel
, p. 13011 - 13028 (2007/10/03)
Synthesis of eight enantiopure styryllactones has been achieved from a common precursor: ethyl (2S, 3S, 4R)-4-(t-butyldimethylsilyloxy)-2,3- isopropylidenedioxy-4-phenylbutanoate 16, prepared in five steps and 65% yield from (R)-mandelic acid. Key elements for the synthesis of goniofufurone 3, goniopypyrone 4, goniobutenolides A and B (5, 6) and 7-epi-goniofufurone 7 were the introduction of the Z-acrylate moiety by a Julia coupling between 16 or its epimer in benzylic position and methyl 3-phenylsulfonyl orthopropionate 11 followed by a highly diastereoselective reduction of the resulting β-keto sulfone which sets up the last of the four contiguous asymmetric center. In the case of styryllactones 4 and 7, prior to the Julia coupling, the benzyl sterocenter of 16 was efficiently inverted by a Mitsunobu reaction. Goniodiol 1 and 9-deoxygoniopypyrone 2 were synthesized via an efficient coupling between the primary triflate derived from the common intermediate 16 or its epimer and Ghosez's sulfone 11 followed by lactonization and PhSO2H elimination. Goniodiol 1 has been efficiently converted to another styryllactone: isogoniothalamin epoxide 41. Addition of the Ghosez's sulfone to an epoxide derived from the enantiomer of 16 allowed a short synthesis of 8-epi-9-deoxygoniopypyrone 8, thereby establishing that its structure is the following: (1R, 5R, 7S, 8S)-8-hydroxy-7-phenyl-2,6- dioxabicyclo[3.3.1] nonan-3-one.
Stereoselective Syntheses of (+)-Goniotriol, (+)-8-Acetylgoniotriol, (+)-Goniodiol, (+)-9-Deoxygoniopypyrone, (+)-Altholactone, and (-)-Goniofupyrone
Mukai, Chisato,Hirai, Syuichi,Hanaoka, Miyoji
, p. 6619 - 6626 (2007/10/03)
The γ-lactone intermediate (-)-7, derived from (+)-tricarbonyl(η6-o-(trimethylsilyl)benzaldehyde)chromium(0) complex, was efficiently converted into the corresponding δ-lactone intermediate (-)-11. This second intermediate has been shown to be a versatile compound for stereoselective syntheses of natural styryllactones possessing a six-membered lactone moiety, isolated from Goniothalamus giganteus, by transforming it into (+)-goniotriol, (+)-8-acetylgoniotriol, (+)-goniodiol, (+)-9-deoxygoniopypyrone, (+)-altholactone, and (-)-goniofupyrone.
Enantiospecific Syntheses of (+)-Goniofufurone, (+)-7-epi-Goniofufurone, (+)-Goniobutenolide A, (-)-Goniobutenolide B, (+)-Goniopypyrone, (+)-Altholactone, (+)-Goniotriol, and (+)-7-Acetylgoniotriol
Shing, Tony K. M.,Tsui, Hon-Chung,Zhou, Zhao-Hui
, p. 3121 - 3130 (2007/10/02)
Practical and efficient syntheses of a number of styryl lactones with various structural complexities were accomplished from commercially available and inexpensive D-glycero-D-gulo-heptono-γ-lactone (D-glucoheptonic γ-lactone) (11).Lactone 11 was converte
Asymmetric Total Synthesis of (+)-Goniotriol and (+)-Goniofufurone
Yang, Zhi-cai,Zhou, Wei-shan
, p. 1429 - 1436 (2007/10/02)
Thr Enantioselective synthesis of two antitumor styryl lactones, (+)-goniotriol and (+)-goniofufurone, have been completed starting from cinnamyl alcohol in ten and eleven steps with an overall yield of 21percent and 12percent, respectively.