Palladium(O)-catalyzed alkylation of various allylic carbonates by aromatic thiols allowed the easy preparation of various allylic aryl sulphides in quite good yields. The reaction was regioselective with substitution at the less hindered side of the π-allyl system whatever the temperature of the reaction, and was diastereoselective with net retention of configuration.
A series of benzo [d] [1,3] azoles 2-substituted with benzyl- and allyl-sulfanyl groups were synthesized, and their cytotoxic activities were in vitro evaluated against a panel of six human cancer cell lines. The results showed that compounds BTA-1 and BMZ-2 have the best inhibitory effects, compound BMZ-2 being comparable in some cases with the reference drug tamoxifen and exhibiting a low cytotoxic
[EN] METHODS FOR THE PREPARATION OF BENZOXAZOLE SULFONAMIDE COMPOUNDS AND INTERMEDIATES THEREOF<br/>[FR] PROCEDE POUR LA PREPARATION DE COMPOSES SULFONAMIDE DE BENZOXAZOLE ET LEURS INTERMEDIAIRES
申请人:TIBOTEC PHARM LTD
公开号:WO2005030739A1
公开(公告)日:2005-04-07
The present invention relates to methods for the preparation of benzoxazole sulfonamide compounds of formula (9) as well as novel intermediates of formula (6) for use in said method. More in particular the invention relates to methods for the Preparation of 2-amino-benzoxazole sulfonamide compounds which make use of 2-mercapto-benzoxazole sulfonamide intermediates, more in particular methods employing the intermediate 1-Benzy1-2-hydroxy-3-[isobutyl(2-methylsulfanyl-benzoxazole-6-sulfonyl)-amino)-propyl)-carbamic ester, and to methods amenable to industrial scaling up. Said benzoxazole sulfonamide compounds are particularly useful as HIV protease inhibitors. The substituents are defined in the claims.
Three‐Component Synthesis of 2‐Substituted Thiobenzoazoles Using Tetramethyl Thiuram Monosulfide (TMTM) as Thiocarbonyl Surrogate
作者:Xi Wang、Chun‐Yan Wu、Yue‐Sheng Li、Zhi‐Bing Dong
DOI:10.1002/ejoc.202001214
日期:2020.11.22
A metal‐free synthesis of 2‐benzyl/allyl‐substituted thiobenzoazoles was developed starting from tetramethyl thiuram monosulfide (TMTM) which served as thiocarbonyl surrogate. By using 2‐aminophenols (or 2‐aminothiophenols, or 1,2‐phenylenediamines) and TMTM as starting materials, 2‐mercaptobenzoazoles could be synthesized efficiently, and the subsequent C–S bond formation with allyl/benzyl halides
The present invention discloses the use, in the manufacture of a preventive and therapeutic drug of a brain disease, of a compound represented by formula (1):
CH2=CH-CH2-S(O)n-R (1)
[wherein R represents a hydrogen atom, an alkyl group, an alkenyl group, a substituted alkyl group, a substituted alkenyl group, an alkylthio group, an alkenylthio group, a phenyl group, a substituted phenyl group, a heterocyclic group, or a group derived from an amino acid or an oligopeptide by deletion of one hydrogen atom, and which group may have a protective group; and n is 0, 1, or 2], a glycoside thereof, or a salt of the compound or the glycoside.
The drug of the present invention for ameliorating brain diseases, inhibiting reduction of brain neurons and promoting branching of neurites, is useful for the prevention and treatment of brain diseases such as dementia in association with degeneration and sloughing of brain neurons.
本发明公开了式 (1) 所代表的化合物在制造脑疾病预防和治疗药物中的用途:
CH2=CH- -S(O)n-R (1)
[其中 R 代表氢原子、烷基、烯基、取代的烷基、取代的烯基、烷硫基、烯硫基、苯基、取代的苯基、杂环基、或由氨基酸或低聚肽去掉一个氢原子衍生的基团,该基团可带有保护基;且 n 为 0、1 或 2]、其糖苷或该化合物或该糖苷的盐。
本发明用于改善脑部疾病、抑制脑神经元减少和促进神经元分支的药物可用于预防和治疗与脑神经元变性和脱落有关的痴呆等脑部疾病。