[EN] RESCORCINOLS, METHODS FOR THEIR MANUFACTURE, AND USES THEREOF [FR] RÉSORCINOLS, LEURS PROCÉDÉS DE FABRICATION ET LEURS UTILISATIONS
摘要:
The present invention relates to a group of resorcinol derivatives as a pharmaceutically active compounds and methods of preparation thereof. Resorcinol derivatives have been used to treat various diseases and disorders. While such treatments hold promise, there remains a need in the art for more effective treatments and this has been brought about by way of the resorcinol derivative of the invention.
Facile and Efficient Synthesis of Lactols by a Domino Reaction of 2,3-Epoxy Alcohols with a Hypervalent Iodine(III) Reagent and Its Application to the Synthesis of Lactones and the Asymmetric Synthesis of (+)-Tanikolide
作者:Hiromichi Fujioka、Satoshi Matsuda、Mai Horai、Eri Fujii、Maiko Morishita、Natsuko Nishiguchi、Kayoko Hata、Yasuyuki Kita
DOI:10.1002/chem.200601341
日期:2007.6.15
The dominoreaction of 2,3-epoxy-1-alcohol derivatives, namely tetrasubstituted 2,3-epoxy-1-alcohols and 2- or 3-alkyl trisubstituted 2,3-epoxy-1-alcohols, with PhI(OCOCF(3))(2) in the presence of H(2)O is described in detail. In this reaction, several types of lactol derivatives can be directly obtained from the 2,3-epoxy-1-alcohol derivatives in a single operation. The obtained lactols were successively
Diastereoselective and Scalable Synthesis of 6-(<i>S</i>)-Hydroxycannabidivarin
作者:Hannah V. Stone、Frederick J. Topping、Alberte X. Veiga、Alexandru Pop、Daniel Miles、Dominika Knych、John Warren、Michael S. Loft、Alejandro Montellano López、Alan Silcock、Inderjit S. Mann、Antoine Millet
DOI:10.1021/acs.joc.3c01057
日期:2023.8.18
The synthesis of 6-(S)-hydroxycannabidivarin was required to assess its biological activity in the treatment of neurological disorders. A novel and scalable synthesis has been developed where the key step involves a Friedel–Crafts alkylation of phloroglucinol with (1S,2R,5R)-2-hydroxy-2-methyl-5-(prop-1-en-2-yl)cyclohex-3-en-1-ylbenzoate. Careful optimization of the reaction conditions identified
需要合成 6-( S )-羟基大麻二酚来评估其治疗神经系统疾病的生物活性。开发了一种新颖且可扩展的合成方法,其中关键步骤涉及间苯三酚与(1 S ,2 R ,5 R )-2-羟基-2-甲基-5-(prop-1-en-2)的弗里德尔-克来福特烷基化-基)环己-3-烯-1-基苯甲酸酯。仔细优化反应条件,确定乙酸异丙酯中的三氟甲磺酸为最佳催化剂/溶剂组合,为该步骤提供最佳的区域选择性、非对映选择性和产率。这使得能够通过 10 个步骤从S -(+)-香芹酮合成 6-( S )-羟基大麻二酚。
Synthesis of the cytotoxic germacranolide eucannabinolide
作者:W. Clark Still、Shizuaki Murata、Gilbert Revial、Kazuo Yoshihara
DOI:10.1021/ja00341a055
日期:1983.2
Efficient Fluorination with Tetrabutylammonium Dihydrogen Trifluoride in a Novel Approach toward 1-α-Fluoro-25-hydroxy-vitamin D<sub>3</sub> Analogues
The known, but hardly accessible, A-ring phosphine oxide 20, a building block for 1-alpha-fluoro-25-hydroxy-vitamin D-3, was prepared by a new route in gram amounts from (S)-(+)-carvone in 20 steps and 0.6% overall yield. Fluorine was introduced at an early stage by the completely regio- and stereoselective trans-diaxial opening of key-epoxide 5 with neat tetrabutylammonium dihydrogen trifluoride at 95 degrees C. The required 2-carbon chain extension of cyclohexanol 13 was accomplished in moderate yield via S-N' substitution with cesium phenylselanyl acetate followed by Ireland-Claisen rearrangement of the resulting ester 15. Spontaneous elimination of the derived phenyl selenoxide led stereorandomly to a 1:1 mixture of dienoates E/Z-17, which was transformed into 20 as previously described.
Total Synthesis of (+)-Machaeriol D with a Key Regio- and Stereoselective SN2′ Reaction
作者:Qiaoling Wang、Qinggang Huang、Bo Chen、Jiangping Lu、Hui Wang、Xuegong She、Xinfu Pan