Synthesis of Gingerenone C and 5-Hydroxy-1-(4′-hydroxy-3-methoxyphenyl)-7-(4′′-hydroxyphenyl)-3-heptanone

The two diarylheptanoids (E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl) hept-4-en-3-one 1 (Gingerenone C) and (±)-5-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-7-(4- hydroxyphenyl)-3-heptanone 2 were synthesized from vanillin 3 and 4-hydroxybenzaldehyde 9.

Theoretical Study on the Reaction Mechanism of 2-Methoxybenzaldehyde,4-Bromo-indanone,Malononitrile and Ammonium Acetate One-pot to Form 6-(2-Methoxyphenyl)-2-amino-6-bromo-5H-indeno[1,2-b]pyridine-3-carbonitrile

The reaction mechanism of 2-methoxybenzaldehyde, 4-bromo-indanone, malononitrile and ammonium acetate one-pot to form 6-（2-methoxyphenyl）-2-amino-6-bromo-5 Hindeno[1,2-b]pyridine-3-carbonitrile was studied by density functional theory. The geometries of the reactants, transition states, intermediates and products were optimized at the PW91/DNP level. Vibration analysis was carried out to confirm the transition state structure. Reaction pathways were investigated in this study. The result indicates that the reaction Re→ TSB1→IMB1→ TSB2→ IMB2→TSB3→IMB3→TSB4→IMB4→TSB5→IMB5→TSB6→IMB6→TSB7→IMB7→ TSB8→IMB8→TSB9→IMB9→P2 is the main pathway, the activation energy of which is the lowest. The dominant product predicted theoretically is in agreement with the experiment results.

NON-ISOTHERMAL KINETICS OF THERMAL DECOMPOSITION OF A NOVEL ANTITUMOR AGENT 4-{5-[3,4-DIMETHYL-5-(3,4,5-TRIMETHOXYPHENYL)THIOPHEN-2-YL]-2-METHOXYPHENYL}MORPHOLINE

The thermal decomposition of a new antitumor agent,4-{5-[3,4-dimethyl-5-(3,4,5-trimethoxyphenyl)thiophen-2-yl]-2-methoxyphenyl}morpholine was studied by Differential Scanning Calorimetry(DSC)and Thermogravimetry(TG)/Derivative Thermogravimetry(DTG)methods at a flow rate of nitrogen gas of 120 mL/min,The kinetic parameters were obtained from the analysis of the corresponding curves by Kissinger's method,Ozawa's method and the integral method,The results indicate that the apparent activation energy and pre-exponential constants of the decomposition reaction are 106.67 kJ/mol and 10^6.19s^(-1),respectively.

Synthesis, Crystal Structure and Antitumor Activity of (E)-1-(7-Methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-5- yl)-3-(2-methoxyphenyl)-2-(1H-1,2,4-triazol-1-yl)propenol

The title compound, （E）-1-（7-methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-5-yl）- 3-（2-methoxyphenyl）-2-（1H-1,2,4-triazol-1-yl）propenol （3a）, was synthesized by the Aldol con- densation reaction of 1-（7-methoxy-2,2-dimethyl-2,3-dihydrobenzofuran-5-yl）-2-（1,2,4-triazol- 1-yl）ethanone with 2-methoxybenzaldehyde and then reduced with NaBH4, and its crystal structure was determined by single-crystal X-ray diffraction： monoclinic system, space group P21 with a = 6.2002（3）, b = 12.8452（7）, c = 13.2257（7） ？, Z = 2, V = 1031.23（9） ？3, Mr = 407.46, Dc = 1.312 Mg/m3, S = 1.054, μ = 0.091 mm-1, F（000） = 432, the final R = 0.0353 and wR = 0.0769 for 3161 observed reflections （I 〉 2σ（I））. X-ray analysis displays that the title compound adopts an E configuration for the C（7）=C（8） double bond and S configuration for the chirality center with the specific rotation of –63.75°. Furthermore, the stability of the crystal was maintained through the intermolecular hydrogen bond O（1）–H？？？N（3）. The antitumor assay exhibits that the title compound 3a （E configuration） has a good antitumor activity against the Hela cell line with the IC50 value of 36.9 μM, which is better than that of 3b （Z configuration）.

Gabriel法合成2-(4-氟苯磺酰基)-乙胺

利用Gabriel合成法,以氨基乙醇为起始原料,经取代、氧化、肼解、酸化,得到高纯度的2-(4-氟苯磺酰基)-乙胺盐酸盐,总收率为21.2%,其结构由IR1、H NMR表征确认.考察不同反应条件下对反应收率的影响,确定最优合成工艺条件,氧化反应:115℃,3 h,n(30%H2O2):n(硫醚)=5?1;肼解反应:80℃,5 h,水合肼稍过量.

1-[(4-苄氧基苯基)-2-[2-(4-甲氧基苯基)]乙胺基]乙醇的合成

以对-羟基苯乙酮为原料,经溴代后,与对甲氧基苯乙胺缩合,再经硼氢化钠还原,得到目标化合物。目标化合物的结构通过IR、1 H-NMR(CDCl3)及MS确证,有望得到高活性及高选择性的β3-肾上腺素受体激动剂。

N-(4-氨基苯磺酰)-乙胺的合成

以对乙酰氨基苯磺酰氯(ASC)和乙胺为原料,经胺化反应生成N-(4-乙酰氨基苯磺酰)-乙胺,然后在碱性条件下水解得到N-(4-氨基苯磺酰)-乙胺.实验对胺化条件进行了优化,用HPLC、GC对产物进行了纯度分析,并经FTIR、GC-MS、1 H-NMR对产物进行了结构表征.结果表明,在nASC∶n乙胺=1.1∶1、反应温度为25℃、反应时间为30min时,胺化产率可达74.4%;在95℃下回流3h左右,水解产率为86.7%;纯度分别为96.52%(GC),98.80%(HPLC).该合成方法具有操作简单、收率高、纯度好等优点.

4-甲氧基-β-苯乙胺的合成研究

以 4 -甲氧基苯甲醛和硝基甲烷为原料 ,经缩合和锌粉、盐酸还原合成 4 -甲氧基 - β-苯乙胺 ,4 -甲氧基 - β-硝基苯乙烯合成收率达 81.2 % ,4 -甲氧基 - β -苯乙胺合成收率达 82 .8% ,两步反应总收率 6 7%。

转氨酶固定化及其连续流催化合成(R)-1-(4-溴苯基)乙胺

构建连续流反应系统以不对称合成(R)-1-(4-溴苯基)乙胺。通过优化转氨酶ATA-117固定于环氧基树脂载体ES-103B的固定化条件,确定固定化酶ATA117@ES103B的最适反应条件,并对所建连续流反应器系统的工艺条件进行优化。20 mmol/L对溴苯乙酮在7 min的停留时间内转化率即可达到93%,时空产率为789.85 g/(L·d)。研究为生物法催化生产(R)-1-(4-溴苯基)乙胺工业化提供可靠的参考。

O-(2-乙基氨基-6-甲基-4-嘧啶基)-O,O-二甲基硫代磷酸酯的合成与表征

以单氰胺为起始原料,经与乙胺胍化、乙酰乙酸甲酯环合、 O,O-二甲基硫代磷酰氯缩合得到O-(2-乙基氨基-6-甲基-4-嘧啶基)-O,O-二甲基硫代磷酸酯产品,其结构经核磁、质谱确认,合成总收率为62%(以单氰胺计),产品含量为95%。

多巴胺转运蛋白显像剂^(99m)Tc-TRODAT-1的合成

以可卡因为原料经水解、脱水、甲酯化、4-氯苯基溴化镁格氏反应、酯水解、酰氯化、酰胺化、酰胺还原、烷基化、酰胺还原、脱巯基保护基等反应 ,合成了配体 TRODAT- 1 ( 2 )。用氯化亚锡作还原剂 ,与高锝酸盐溶液反应 ,生成的多巴胺转运蛋白显像剂 99m Tc( V) - TRODAT- 1 ( 1 ) ,放射化学纯度大于 95% 。

Studies on Chemical Constituents of the Fermentation Liquor of Soil Fungus 07-11

Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11, which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl) acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications. Compound 1 was a new natural product. Compound 2 was firstly isolated from its genus. Spectral data of 1 and complete 1H NMR data of 2 were reported for the first time.

外消旋2-羟基-3-甲氧基-3,3-二苯基丙酸的手性拆分研究

研究并优化了标题化合物的手性拆分工艺,获得其单一的S型异构体。以(S)-4-硝基-1-苯乙胺盐酸盐为手性拆分剂,与标题化合物生成非对映异构体,利用两者溶解性差异来进行手性拆分,得到中间体(S)-2-羟基-3-甲氧基-3,3-二苯基丙酸(S)-4-硝基-1-苯乙胺盐,经酸性游离后得到产物(S)-2-羟基-3-甲氧基-3,3-二苯基丙酸。对溶剂量、拆分剂的量、缚酸剂的量以及重结晶条件进行了考察,同时对手性拆分剂进行了回收。结果表明,以100 g标题化合物为起始原料,20倍体积的无水乙醇为溶剂,1.5倍物质的量的三乙胺为缚酸剂并使用0.75倍物质的量的拆分剂进行拆分时,得到了较好的产率(40.6%)和光学纯度(82.8%e.e.),经进一步重结晶达到质量要求(e.e.>99.00%)。该工艺具有操作简便、产品成本低且质量较高的优点,适用于工业化生产。

一个具有抗癌活性化合物的合成及其反应机理

研究了 １，５二氯４，８二硝基９，１０蒽醌与 Ｎ， Ｎ二甲氨乙基胺反应的两种产物产率比与反应条件的关系及其可能的反应机理，并获得了制备具抑制 Ｐ３８８和 Ｌ１２１０活性化合物 １，８双［（ Ｎ， Ｎ二甲氨乙基）氨基］４氯５氨基９，１０蒽醌的有效方法。

Two New Diarylheptanoids from the Rhizomes of Zingiber officinale

Two new diaryheptanoids, (5S)-5-acetoxy-1,7-bis(4-hydroxy-3-methoxyphenyl)-3- heptanone (1) and (3S,5S)-3,5-diacetoxy-1,7-bis(4-hydroxy-3-methoxyphenyl)heptane (2) were isolated from the rhizomes of Zingiber officinale. Their structures were elucidated by spectral methods.

New method in synthesizing an optical active intermediate for (R,R)-formoterol

（R）-1-（4-Methoxyphenyl）propan-2-amine 2a, an optical active intermediate for （R,R）-formoterol, was synthesized from Dalanine in 65% overall yield by using a simple route, which contained protecting amino group, cyclization, coupling with Grignard reagent, reduction and deprotection.

Synthesis and biological evaluation of ^(99m)Tc-HEDTA/HYNIC-MPP4 complex for 5-HT_(1A) receptor imaging

5-HT_(1A)receptor is associated with a variety of pathophysiology of neuropsychiatric disorders.Accordingly,we have synthesized a new 5-HT_(1A) receptor ligand(HYNIC-MPP4)and labeled it with^(99m)Tc using N-(2-hydroxyethyl)ethylenediaminetriacetic acid(HEDTA)as coligand.^(99m)Tc-HEDTA/HYNIC-MPP4 was prepared under pH 6 at room temperature.Biodistribution of^(99m)Tc-HEDTA/HYNIC-MPP4 in normal mice showed that this complex had moderate brain uptake(0.60%ID·g^(-1)at 2 min p.i.)and good retention.The hippocampus had the highest radioactivity uptake at 2 min p.i.(1.84%ID·g^(-1)).The ratio of Hipp/CB was 3.1 at 2 min p.i.and increased to 4.4 at 60 min p.i.After blocking with 8-hydroxy-2-(dipropylamino)tetralin,the uptake of hippocampus was decreased significantly from 1.84%ID·g^(-1) to 0.53%ID·g^(-1) at 2 min p.i.,while the cerebellum had no significant decrease.This^(99m)Tc complex could be a potent agent for 5-HT_(1A) receptor imaging.

玄参药材中多类型成分的定量分析方法建立及其在脉络宁口服液中的应用

目的建立超高效液相色谱-串联三重四极杆质谱(UPLC-QqQ-MS/MS)方法同时测定玄参Scrophulariae Radix中多类型成分的含量,并将此方法应用于脉络宁口服液(Mailuoning Oral Liquid,MOL),为玄参药材和MOL的质量评价提供依据。方法采用Waters HSS T3色谱柱(100 mm×2.1 mm,1.8μm),以0.1%甲酸水溶液和乙腈为流动相进行梯度洗脱。质谱采用电喷雾离子源(electrospray ionization,ESI),在多反应监测模式(multiple reaction monitoring,MRM)下对环烯醚萜苷、苯丙素苷、有机酸和核苷4类成分进行定量分析,结合化学计量学分析评价不同批次样品的质量。结果化学计量学结果表明,不同地区的玄参药材得到了有效区分,其质量差异可能与其生长环境相关。此外,4个年份(2019、2020、2021和2022年)的MOL各自聚成1类,可能是当年使用的药材质量相对稳定使得同一年份的MOL质量更相近;通过正交偏最小二乘-判别分析(orthogonal partial least squares-discriminate analysis,OPLS-DA)进一步筛选出不同年份MOL中异毛蕊花糖苷、对甲氧基肉桂酸、腺苷、1-(3-hydroxy-4-methoxyphenyl)ethyl-3-α-L-rhamnopyranosyl-6-caffeoyl-β-D-glucopyranoside、对羟基苯甲酸、阿魏酸和原儿茶酸7个差异性化学成分。结论该方法特异性强、准确度高且稳定性好,可为MOL中臣药玄参的药材选择及复方整体质量评价提供科学依据。

白苞裸蒴化学成分研究

目的研究白苞裸蒴Gymnotheca involucrata全草的化学成分。方法利用反相硅胶柱色谱和反相制备液相色谱等手段进行分离纯化,并通过1H-、13C-NMR等波谱技术进行结构鉴定。结果从白苞裸蒴95%乙醇提取物中分离得到10个化合物,分别鉴定为N-苯甲酰基-2-羟基-2-(4′-羟基苯基)-乙胺(1)、N-苯甲酰基-2-(3′,4′-二羟基苯基)-乙胺(2)、6,9-dihydroxy-4,7-megastigmadien-3-one(3)、对羟基苯乙腈(4)、腺苷(5)、5-hydroxy-3,4-dimethy-5-pentyl-2(5H)-furanone(6)curculonone A(7)、3α-hydroxy-5,6-epoxy-7-megastigmen-9-one(8)、gymnothelignan J(9)、gymnothelignan I(10)。结论所有化合物均为首次从白苞裸蒴中分离得到。

铁皮石斛醋酸乙酯部位化学成分研究

目的进一步研究铁皮石斛Dendrobium officinale活性醋酸乙酯部位的化学成分。方法运用大孔树脂、MCI、硅胶、凝胶(Sephadex LH-20)、ODS等柱色谱、制备薄层色谱及制备高效液相色谱法等分离技术,进行化合物的分离纯化,根据^(1)H-NMR、^(13)C-NMR、MS等波谱数据和理化性质鉴定化合物的结构。结果从铁皮石斛乙醇提取物的醋酸乙酯部位分离得到了34个化合物,分别鉴定为moscatin(1)、黑麦草内酯(2)、柚皮素(3)、橙皮苷(4)、甘草素(5)、2-(4-hydroxy-3-methoxyphenyl)-3-(2-hydroxy-5-methoxyphenyl)-3-oxo-l-propanol(6)、异甘草素(7)、(E)-4-hydroxycinnamic acid(8)、(Z)-4-hydroxycinnamic acid(9)、coniferyl p-coumarate(10)、sinapyl p-coumarate(11)、tinosporaic acid A(12)、N-trans-coumaroyltyramine(13)、N-trans-feruloyltyramine(14)、丁香脂素(15)、pinoresinol(16)、梣皮树脂醇(17)、lirioresionol(18)、2(5H)-Furanone 5-hydroxy-3,4-dimethyl-5-pentyl(19)、丁香酸(20)、十六烷酸(21)、对羟基苯甲酸(22)、对羟基苯甲醛(23)、阿魏酸(24)、二氢松柏醇(25)、十七烷(26)、4-羟基-3,5-二甲氧基反式肉桂醛(27)、dihydro-p-cinnamic acid(28)、(+)-(4S)-(2E)-4-羟基-2-壬烯酸(29)、1,3-benzenediol(30)、对羟基苯酚(31)、水杨酸(32)、对羟基苯乙酮(33)和香草醛(34)。结论化合物2首次从石斛属植物中分离得到,化合物3~7均为首次从铁皮石斛中分离得到。