2,N-二甲基-N-(3,3-二苯基丙基)-1-氨基-2-丙醇的合成

目的研究2,N-二甲基-N-(3,3-二苯基丙基)-1-氨基-2-丙醇(1)的合成方法.方法以肉桂酸、氯化亚砜、甲胺等为原料,经烃化、氯化、酰化和还原反应得到N-甲基-3,3-二苯基丙胺(5);以3-氯异丁烯为原料,经加成、水解、环合反应得到环氧异丁烷(7),化合物5与7经烃化反应得到目标产物.结果与结论设计的合成路线以肉桂酸计,5步反应总收率为62.7%,合成路线简便易行,适于大规模制备.所合成的目标产物经ESI-MS和1H-NMR确证.     

(R)-2-甲基吡咯烷的合成

（R）-N-三苯甲基丙氨醛经wittig-Homer反应和催化加氢反应制得（R）-5-甲基-2-氧代吡咯烷，再用硼烷．二甲硫醚还原得到（R）-2-甲基吡咯烷，总收率63％。     

(R,S)-N-(1-乙氧羰基)-3-苯丙基-L-丙氨酸的合成

(S)-苹果酸经羟基保护并脱水得(S)-2-乙酰氧基丁二酸酐,经傅-克酰化反应、钯炭催化还原后成乙酯得(S)-2-羟基-4-苯丁酸乙酯,与三氟甲磺酸酐成酯后,与L-丙氨酸苄酯发生取代反应,最后氢化脱苄制得(R,S)-N-(1-乙氧羰基)-3-苯丙基-L-丙氨酸,总收率约30％.     

2-[(吡啶-4-基)甲基氨基]-N-[4-(三氟甲基)苯基]苯甲酰胺的合成工艺研究

目的合成2-[(吡啶-4-基)甲基氨基]-N-[4-(三氟甲基)苯基]苯甲酰胺(Ⅰ)。方法以邻硝基苯甲酸为起始原料,经氯代、氨解、水合肼还原、缩合、硼氢化钠还原共5步反应合成得到目标化合物Ⅰ。结果与结论经5步反应合成了目标化合物Ⅰ,其结构经核磁共振氢谱、质谱确证。改进后的合成工艺反应条件温和,操作简便,收率可达54.5%。     

2-(氨基)乙基甲基砜盐酸盐的合成

甲基亚磺酸锌二水合物(2)与环氧乙烷经开环、氯代、取代及水解反应制得2-(氨基)乙基甲基砜盐酸盐(1),总收率50%。2或甲基亚磺酸钠与N-(2-溴乙基)邻苯二甲酰亚胺经取代和水解反应也可制得1,总收率68%或79%。     

手性二价钌络合物催化不对称转移氢化合成左旋-(S)-1-(2—呋喃基)乙醇

在手性二价钌络合物(6)催化下经不对称转移氢化合成了左旋-(S)-1-(2-呋喃基)乙醇(8)。催化剂(6)由均三甲苯经Birch还原后,与三氯化钌反应转化成二聚均三甲苯二氯化钌(3),再与(1S,2S)-N-(对甲苯磺酰基)-二苯乙二胺(5)络合而得。     

(2S,3R)-1-二甲氨基-3-(3-甲氧基苯基)-2-甲基戊-3-醇的合成工艺研究

目的 对(2S,3R)- 1-二甲氨基-3-(3-甲氧基苯基)-2-甲基戊-3-醇合成工艺进行研究.方法 以3-戊酮为起始原料,经Mannich反应、手性拆分、Grignard反应等步骤合成(2S,3R)-1-二甲氨基-3-(3-甲氧基苯基)-2-甲基戊-3-醇,并对化学拆分进行工艺优化.结果 合成(2S,3R)-1...     

疟疾防治药物的研究——Ⅸ.2,4-二氨基-6-[N-(取代苄基)-N-(取代氨基甲基)氨基]-喹唑啉类衍生物的合成

Thompson曾报道2,4-二氨基-6-(3,4-二氯苄基)-氨基喹唑啉PAM-1392 WR-9055(I_1)对伯氏鼠疟原虫,鸡疟原虫和食蟹猴疟原虫以及诺氏猴疟原虫均有较强的抗疟活性。并对伯氏鼠疟抗性株同样有明显作用。Peters报道PAM-1392对鼠疟原虫-斯氏按蚊系统Plas-     

(1′R,2S,2′S)-2-(2-甲基-2-溴甲基-3-亚甲基)环戊基丙酸的合成

以商业易得的（＋ ）内向３溴莰酮２ 为手性源合成了光学活性的（１′ Ｒ,２ Ｓ,２′ Ｓ）２（２溴甲基２甲基３亚甲基）环戊基丙酸。     

3-[(甲基-1-萘甲基)氨基]-1,2-环氧丙烷的制备

由N-甲基-1-萘甲胺与环氧氯丙烷反应生成的1-氯-3-[（甲基-1-蔡甲基）氨基]-2-丙醇在碱性条件下环氧化制得标题化合物，总收率83％。     

1-氧代-1-(6-甲氧基-2-萘基)-2-溴丙烷的合成

通过滴加溴化铜的甲醇溶液,６－甲氧在－２－丙酰萘在均相体系中回流,可高选择性地溴化,得到合成非甾体消炎镇痛药萘普生的关键中间体１－氧代－１－（６－甲基氧－２－萘基）－２溴丙烷,收率９２．８％。     

Synthesis and antibacterial activity of 4-(1-naphthyl)-6-arylpyrimidin-2-(1H)-ones

A series of new 4-(1-naphthyl)-6-arylpyrimidin-2-(1H)-ones has been synthesized directly from 2-amino-4-(1-naphthyl)-6-arylpyrimidines by nitrosation reaction and also from 1-(1-naphthyl)-3-arylprop-2-en-1-ones in an alcohol solution of urea containing sodium ethoxide. The synthesized compounds were characterized by various spectroscopic methods. All substances showed significant antimicrobial activity in vitro against several standard strains. Published in Khimiko-Farmatsevticheskii Zhurnal, Vol. 41, No. 5, pp. 22–24, May, 2007.     

Synthesis and anticonvulsant activity of O-alkylated derivatives of 1-(2-naphthyl)-2-(imidazol-1-yl)ethanone oxime

In this study, O-alkylated derivatives of nafimidone oxime chemically, 1-(2-naphthyl)-2-(imidazol-1-yl)ethanone oxime have been synthesized as potential anticonvulsant compounds. O-alkylation of the oxime using hydrochlorides of various dialkylaminoethyl chlorides, methyl chloroacetate and alkyl dihalides gave the O-alkylated derivatives. Anticonvulsant activity of the compounds was determined against pentylenetetrazole induced convulsions in mice. The newly synthesized compounds exhibited moderate to significant activity compared to diazepam.     

D2 dopaminergic and 5-HT1A serotonergic activity of 2-(1-naphthyl)ethyl- and 2-(2-naphthyl)ethyl amines

Several tertiary 2-phenylethyl, 2-(1-naphthyl)ethyl and 2-(2-naphthyl)ethyl amines were synthesized and their binding affinities for dopamine D(1), D(2) and serotonin 5-HT(1A) receptors evaluated in radioligand binding assays. All compounds were inactive in D(1) dopamine radioligand binding assay. The 2-(1-naphthyl)ethyl analogues expressed a low but significant binding affinity for the D(2) and moderate one for the 5-HT(1A) receptor subtypes. Most of the remaining compounds expressed binding affinity at the 5-HT(1A) receptor subtype but were inactive in D(2) receptor binding assay. Based on these results and considering the chemical characteristics of the compounds synthesized and evaluated for dopaminergic and serotonergic activity throughout the present study it can be concluded that hydrophobic type of interaction (stacking or edge-to-face) plays a significant role in the formation of receptor-ligand complexes of 2-(1-naphthyl)ethyl amines. This structural motive can be applied to design and synthesize new, more potent dopaminergic/serotonergic ligands by slight chemical modifications.     

(1R,2S)-(-)-麻黄碱盐酸盐的合成

设计并实现了（1R，2s）-（-）-麻黄碱盐酸盐的一种不对称合成法，以2-溴-1-苯基-1-丙酮为起始原料，经（S’）-α-苯乙胺胺化、分离、KBH4立体选择性还原、Leuckan反应及钯炭脱苄等制得目标物，总收率约25％。     

(R)-1-(4-苄氧基-3-硝基苯基)-2-溴乙醇的合成

4-羟基-3-硝基苯乙酮经O-苄基化、溴化、还原制得1-(4-苄氧基-3-硝基苯基)-2-溴乙醇,然后酶促拆分得(R,R)-型福莫特罗的关键中间体(R)-1-(4-苄氧基-3-硝基苯基)-2-溴乙醇,总收率约25%.     

(R)-5-(1-羟基-2-溴乙基)水杨酰胺醋酸酯的合成

目的优化关键手性中间体(R)-5-(1-羟基-2-溴乙基)水杨酰胺醋酸酯的合成工艺。方法以水杨酸为原料,经过酯化、氨解、付克酰基化、α-溴代、乙酰化5步反应得到5-溴乙酰水杨酰胺醋酸酯,其在手性催化剂钌-单磺酰化1,2-二苯基乙二胺((S,S)-Ru-TsDPEN)的催化下发生不对称转移氢化,得到(R)-5-(1-羟基-2-溴乙基)水杨酰胺醋酸酯。结果手性催化剂(S,S)-Ru-TsDPEN对5-溴乙酰水杨酰胺醋酸酯有较好的催化活性及对映体选择性,目标化合物总收率为31.5%,对映体过量百分率为80.8%。结论本方法为进一步研究拉贝洛尔的合成奠定了实验基础。