- 更多网络例句与甲基相关的网络例句 [注：此内容来源于网络，仅供参考]
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Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.
第三章(来源：73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱，使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合，以较高的产率合成出10种目标化合物：2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2，4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2，4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮，经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征，10种目标产物均未见文(来源：ABC论文cccccc网www.abclunwen.com)献报道。
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They are 4-(2- hydroxy-3-butynlenoxy) benzoic acid (1, WA), 5-chloro-7, 8-dihydroxy-7-methyl- 6-oxo-3- [ -3, 4-dihydroxy-3, 5-dimethyl-l-heptylene] -1H-8, 8a-dihydrobenzo [2, 3-c] pyran (2, WB),-2-(2-methyl-2-dibutene diamido)-2-butenoic acid (3, B5262), 3, 4-dihydro-9, 10-dihydroxy-7-methoxy-3-methyl-1H-naphtho [2, 3- c] pyran-1-one (4, A73 semi-Vioxanthin), 8, 8'-bis (6, 9-dioxo-3,4-dihydro-10- hydroxy-7-methoxy-3-methyl-1H-naphtho [2, 3-c] pyran-1-one)(5, A122 Xanthomegnin), 2, 5-dioxo-3a-hydroxymethyl-3, 3a, 6, 6a-tetrahydro-furo [2, 3-b] furan (6, 1003-2), 7-acety1-5-chloro-6, 8-dioxo-7-methyl-3- [ -3, 5-dimethyl-1, 3- diheptylene] -4aH-benzo [2, 3-c] pyran (7, M2-2 sclerotiorin), respectively.
它们分别被命名为4-（2-羟基-3-丁炔氧基）苯甲酸（1，WA）、5-氯-7，8-二羟基-7-甲基-6-氧代-3-[-3，4-二羟基-3，5-二甲基-1-庚烯基]-1H-8，8a-二氢苯并[2，3-c]吡喃（2，WB）、-2-（2-甲基-2-丁烯二酰亚胺基）-2-丁烯酸（3，B5262）、3，4-氢-9，10-二羟基-7-甲氧基-3-甲基-1H-萘并［2，3-c］吡喃-1-酮（semi-Vioxanthin，4，A73）、8，8'-双（6，9-二氧代-3，4-二氢-10-羟基-7-甲氧基-3-甲基-1H-萘并［2，3-c］吡喃-1-酮）（Xanthomegnin，5，A122）、2，5-二氧代-3a-羟甲基-3，3a，6，6a-四氢-呋喃并［2，3-b］呋喃（6，1003-2），7-乙酰基-5-氯-6，8-二氧代-7-甲基-3-［-3，5-二甲基-1，3-庚二烯基］-4aH-苯并2，3-c］吡喃（Sclerotiorin，7，M2-2）。
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In the first part, five new 4-acyl pyrazolone 4-ethyl-thiosemicarbazones compounds: 1-Phenyl-3-methyl-4-(4-bromo)benzal-pyrazol-5-one N(4)-ethyl-thiosemicarbazone (PM4Br BP-ETSC), 1-Phenyl-3-methyl-4-(4-methyl)benzal-pyrazol-5-one N(4)-ethyl-thiosemicarbaz -one (PM4MBP-ETSC), 1-Phenyl-3-methyl-4-benzal-pyrazol-5-one N(4)-ethyl-thiosemicarba -zone, 1,3-diphenyl-4-benzal-pyrazol-5-one N(4)-ethyl-thiosemicarbazone and 1-Phenyl-3-methyl-4-phenylacetyl-pyrazol-5-one N(4)-ethyl-thiosemi -carbazone have been synthesized and characterized by elemental analyses, IR, 1H NMR spectra and single-crystal XRD.
第一部分合成了五个4-酰基吡唑啉酮缩4-乙基-氨基硫脲化合物：1-苯基-3-甲基-4-（4-溴）苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲(PM4BrBP-ETSC)，1-苯基-3-甲基-4-(4-甲基)苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲(PM4MBP-ETSC)，1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲，1，3-二苯基-4-苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲和1-苯基-3-甲基-4-苯乙酰基-5-吡唑啉酮缩4-乙基-氨基硫脲，其中前四个具有光致变色性质。
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The preliminary bioassays indicated that, at 500 g/mL, 1-(o-tolyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4g) and 1-(2,4-dimethyl- phenyl)-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4k) showed inhibitory activities 90% and 80% against Blumeria graminis, respectively; and at 25 g/mL, 4-phenyl-4-(4-chloro-3-ethyl-1- methylpyrazol-5-ylcarbonylsemicarbazide (4c) showed inhibitory activity 70.1% against Botrytis cinerea and 1-2-nitro-phenyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonylsemicarbazide (4d) showed inhibi-tory activitiy 51.3% against Pyricularia oryzae.
初步生物活性实验结果表明，在500 mg/mL浓度下，化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-甲基苯基)氨基脲(4g)， 1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2，4-二甲基苯基)氨基脲(4k)对小麦白粉病菌的抑制率分别达到90%和80%；在25 mg/mL浓度下，化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)对黄瓜灰霉病菌的抑制率达到70.1%；化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)和1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-硝基苯基)氨基脲(4d)对稻瘟病菌的抑制率均达到51.3%。
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The results of biological tests indicated that, at 25 g/mL, 1-(4-bromo-3-ethyl-1-methyl-pyrazol-5'-ylcarbonyl-4-(2-nitrophenyl) semicarbazide (4d) showed inhibitory activities (52.6%) against Pyricularia oryzae. 1-(4-bromo-3-ethyl-1-methyl-pyrazol-5'-ylcarbonyl)-4-(3-chlorophenyl) semicarbazide (4j), 1-(4-bromo-3-ethyl-1-methyl-pyrazol-5'-ylcarbonyl)-4-(2,4-dimethylphenyl) semicarbazide (4k), 1-(4-bromo-3-ethyl-1-methyl-pyrazol-5'-ylcarbonyl)-4-(3,4-dimethyiphenyl) semicarbazide (41) and 1-(4-bromo-3-ethy-1-methyl-pyrazo1-5'-ylcarbonyl)-4-(2,4-difluorophenyl) semicarbazide (4m) showed inhibitory activities (45.6%) against Pyricularia oryzae, repestively.
初步生物活性实验结果表明，在25μg/mL浓度下，1-（1-甲基－3-乙基－4-溴－5-吡唑甲酰基）－4-（2-硝基苯基）氨基脲(4d)对水稻稻瘟病菌Pyricularia oryzae抑制活性达到52.6%；1-1-甲基－3-乙基－4-溴－5-吡唑甲酰基）－4-（3-氯苯基）氨基脲(4j，1-（1-甲基－3-乙基－4-溴－5-吡唑甲酰基）－4-（2，4-二甲基苯基）氨基脲(4k)，1-（1-甲基－3-乙基－4-溴－5-比唑甲酰基）－4-（3，4-二甲基苯基）氨基脲(41)和1-（1-甲基－3-乙基－4-溴－5-吡唑甲酰基）－4-（2，4-二氟苯基）氨基服(4m)对水稻稻瘟病菌Pyricularia oryzae抑制活性达到45.6%。
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Chiral 3 methy 1,4 butanediol and its derivatives are the important intermediate of synthesis of chiral smectic liquid crystal polyesters and chiral natrual products with biological activity. In the paper, a new efficient route of 3 methyl 1,4 butanediol and its two derivatives, 2 methyl 4 tetrapyranyloxy 1 butanol and 2 methyl 4 tetrapyranylbutanal, was described, and the target products were synthesized by employing asymmetric hydroboration oxidation improved.
手性2－甲基－1，4－丁二醇及其衍生物是合成各种手性近晶型液晶材料以及手性天然生物活性物质的重要中间体，以3－甲基－3－丁烯－1－醇为原料利用改进的不对称硼氢化－氧化反应，成功地合成了－2－甲基－1，4－丁二醇以及其2种手性衍生物：－2－甲基－4－四氢吡喃氧基－1－醇和－2－甲基－4－四氢吡喃氧基丁醛。
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The cytotoxicity of these compounds were valuated by MTT and SRB methods using three cancer cell lines: HL-60, A-549, P-388. Cyclo-shikonin, and cyclo-alkannin have high cytotoxicity against HL-60.The chiral center of side chain has no effect on their activity. 2- 1-(Acetyloxy-4-methyl-3-pentenyl -5, 8-dihydroxy-1, 4-naphthoquinone (105) has strong inhibition effect on P-388 cells. 2- 1-(isooctyloxy-4-methyl-3-pentenyl -5, 8-dihydroxy-1, 4-naphthoquinone (108) and 2- 1-(2-furoyloxy-4-methyl-3-pentenyl -5, 8-dihydroxy-1, 4-naphthoquinone (112) have high inhibition on A-549.Shikonin (1), alkannin (2), and their derivatives have the structural features of a planar chromophores and short side chain. We examined the ability to inhibit the telomerase.
抗肿瘤活性初步筛选测试采用小鼠白血病P-388肿瘤细胞和人肺癌A-549肿瘤细胞进行，结果表明侧链羟基的手性对抗肿瘤活性无明显影响；有数个化合物具有很好的体外抑制活性，特别是化合物2-（1-异辛酰氧基-4-甲基-3-戊烯基）-5，8-二羟基-1，4-萘醌（108）和2-[1-（2-呋喃甲酰氧基）-4-甲基-3-戊烯基]-5，8-二羟基-1，4-萘醌（112）体外显示对人肺癌A-549肿瘤细胞有强效；2-（1-乙酰氧基-4-甲基-3-戊烯基）-5，8-二羟基-1，4-萘醌（105）对小鼠白血病P-388肿瘤细胞有强效；环紫草素和环异紫草素对人白血病HL-60细胞有强烈抑制作用。
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Their chemical structures were characterizd on the basis of spectral and chemical evidences to be: Sarracenin (1), 2-methyl-5-hydroxy-7-O-ethyl caffeate chromome (2), Naringenin(3), 2-methyl-5, 7-dihydroxychromome (4), 2-methyl-6-hydroxyl-cinnamic acid methyl ester (5), eriodictyol (6), quercetin (7), Naringenin-7-O-β-D-glucoside( 8 ), eriodictyol-7-O-α-D-glucoside (9), quercetin-3-O-β-D-glucoside(10). In addition, one compound was abtained from the n-butanol frationk, which was finally identified as Morrosiside(11) by spectral and chemical evidences.
以波谱数据及其理化性质鉴定为：Sarracenin(1)，2-甲基-5-羟基-7-O-咖啡酸乙酯色原酮(2)，柚皮素(3)，2-甲基-5，7-二羟基色原酮(4)，2-甲基-6-羟基苯丙烯酸甲酯(5)，圣草酚(6)，槲皮素(7)，柚皮素-7-O-β-D-葡萄糖苷(Naringenin-7-O-β-D-glucoside)(8)，圣草酚-7-O-α-D-葡萄糖苷(eriodictyol-7-O-α-D-glucoside)(9)，槲皮素-3-O-β-D-葡萄糖苷(quercetin--3-O-β-D-glucoside)(10)；另外从正丁醇萃取部位分离得到1个化合物，以波谱数据和文献对照鉴定为：Morroniside(11)。
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Methyl-5-ethyl-2-thiouracil,m.p.211°,was prepared according to the direc- tions of Johnson and Baily.4-Methyl-5-ethyl-uracil,m.p.236°,was formed in a 81% yield from 4-methyl-5-ethyl-2-thiouracil by boiling the latter with an aqueous solution of monochloroacetic acid.4-Methyl-5-ethyl-uracil reacted with phosphorous oxychloride and phosphorous pentachloride,giving 4-methyl-5-ethyl-2,6-dichloropy- rimidine in a 79% yield.
14-甲基5-乙基-2，6-二氯代嘧啶曾用磷醯氯和五氯化磷与其相应的2，6-二羟基嘧啶作用制取。(2)4-甲基-5-乙基-2，6-二氯代嘧啶与醇钠作用，极易转变成4-甲基-5-乙基-2，6-二烷氧基嘧啶。(3)4-甲基-5-乙基-2，6-二甲氧基嘧啶和2-氧代-3，4-二甲基-5-乙基-6-甲氧基嘧啶在高温时重排成其稳定构型的的异构体：1，3，4-三甲基-5-乙基-2，6-二氧代嘧啶。
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Firstly, A precise batch-distilling tower, which would be adaptable to operate in industry or middle scale experiment, has been designed and set up. The optimized operation conditions of reflux (80?1), vaporing quantity ( 9~10 mL?min-1), and raw material concentration (60% mass of 2-methyl-1-butanol) were found.
首先在小试研究成果的基础上，放大设计并建造了适合2-甲基-1-丁醇与3-甲基-1-丁醇的分离的中试或小规模工业化生产的间歇精馏装置，并以此装置作为实验装置进行了工业化试验，得到了该塔的最优操作条件：回流比80、汽化量9~10ml/min、原料中2-甲基-1-丁醇的质量百分浓度约为60%。
- 更多网络解释与甲基相关的网络解释 [注：此内容来源于网络，仅供参考]
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2-methyl indole：2-甲基
2-甲基 啶 2-Methylpyridine | 2-甲基 2-methyl indole | 2-甲基 2 Methyl Piperazine
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cymene：甲基
cyme 聚伞花序 | cymene 甲基 | cymiferous 聚伞花序的
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Rupatadine fumarate：富马酸卢帕他定
富马酸卢帕他定(rupatadine fumarate)是强效抗过敏药,其化学名为8-氯-11-[1-[(5-甲基-3-吡啶基)甲基]-4哌啶亚基]-6,11-二氢-5H-苯并[5,6]环庚并[1,2-b]吡啶富马酸盐.
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Intermediate：中间体
中间体(Intermediate): 2,4-二氨基苯磺酸(无钠盐)2,4-二氨基苯磺酸钠(间双)1-(4-磺酸苯基)-3-甲基-5-吡唑酮 ;1-(2,5二氯4磺酸苯基)-3-甲基-5-吡唑酮; 染料(Dyes)
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Meth：甲基
metermultiplier 仪表量程倍增器 | meth- 甲基 | methacrolein 甲基丙烯醛
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meth methyl：甲基
m.e.p. mean effective pressure平均有效压力 | meth methyl 甲基 | m.e.v.;MEV million electron volts 兆电子伏特
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methyl：甲基
我们在过去几年里已经在实验室里做过这种检查了,因为它表明高半胱氨酸水平过高不仅显示维生素B族缺乏,而且也是 身体"甲基"(methyl)供体缺乏的标志. 甲基供体不仅是降低高半胱氨酸水平的要素,而且也能制造大脑所需的重要养分.
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methyl：甲基,甲烷
\\"加氧甲乙醚\\",\\"methoxyflurane\\" | \\"甲基,甲烷\\",\\"methyl\\" | \\"溴甲烷\\",\\"methyl bromide\\"
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methyl：甲基,木精
CLOVE 丁香 | METHYL 甲基,木精 | SALICYLATE 水杨酸盐
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5-Bromo-2-methyl pyridine：5-溴-2-甲基-吡啶
268 4-碘苯磺酸钾(对碘苯磺酸钾) 4-Iodo-benzenesulfonic acid potassium-salt 13035-63-7 | 269 5-溴-2-甲基-吡啶 5-Bromo-2-methyl-pyridine 3430-13-5 | 270 4-硝基-1-萘酚 4-Nitro-1-naphthol 605-62-9