The pure isomers 3-(1-hydroxyethyl)-8-vinyldeuteroporphyrin Ⅸ and 3-vinyl-8-(1-hydroxyethyl)deuteroporphyrin Ⅸ were obtained from protoporphyrin Ⅸ dimethyl ester.Starting from these two acetylating compounds,eight new porphyrin derivatives were synthesized through an alkyloxy fission reaction.

以原卟啉Ⅸ二甲酯為起始原料，合成并分離得到3-(1-羥乙基)-8-乙烯基次卟啉Ⅸ（Ⅱ1）和3-乙烯基-8-(1-羥乙基)次卟啉Ⅸ（Ⅱ2）二個(gè)異構(gòu)體久久91精品综合国产91久久，兩者分別經(jīng)酰化后與醇進(jìn)行烷氧裂解反應(yīng)合成了8個(gè)全新的卟啉衍生物成在线人视频免费视频网址。

The optimum reaction condition of NaClO oxidative pretreating and viny acetate acetylating technique has been determined according to sizing property, that further improves the function of acetylated starch size and expands its application in warp sizing .

對醋酸淀粉酯的變性工藝進(jìn)行了系統(tǒng)的研究和探討亚洲国产精品丝袜国产自在线，以漿紗性能為依據(jù)，確定了次氯酸鈉氧化預(yù)處理工藝和醋酸乙烯酯乙跞巳伺娜巳瞬伲化工藝的最佳反應(yīng)條件操到高潮的视频，進(jìn)一步提高了醋酸淀粉酯漿料的性能，擴(kuò)大了醋酸淀粉酯在紡織經(jīng)紗上漿中的應(yīng)用

The results for origin differentiation of 10 heroin samples and their acetylating agents were satisfactory.

經(jīng)對10個(gè)不同來源的海洛因樣品進(jìn)行檢測亚洲字幕中文丝袜在线，得到了滿意的結(jié)果偷拍人妻。

Including the common component CBP/p300, one of whose functions is to modify the structure of chromatin by acetylating

它的名字最初來自于果蠅上的同源位點(diǎn)（這個(gè)基因決定果蠅身體結(jié)構(gòu)的特征）。

The optimal derivatization condition is reducting reaction 2.5h at 50℃followed by acetylating 2.5h at 90℃.

總結(jié)出了單糖衍生化最佳的反應(yīng)條件為還原溫度50℃又大又爽又深的欧美啪啪、還原時(shí)間2.5h无码强奷乱码中文字幕；乙酰化溫度90℃、乙跞瞬偃巳瞬迦耍化時(shí)間2.5h国产日韩欧美高清在线播放视频。

acetylating agent：乙跖访廊蘸谝灰常化劑

281. ethylene 乙烯 | 282. acetylating agent 乙?1免费黄色视频；瘎?| 283. acetic acid 乙酸

acetylating agent：乙酰劑

acetylase 乙酰酯酶 | acetylating agent 乙酰劑 | acetylation 乙酰化

acetylating agent：乙豕鷄v黄色一级；瘎┍疚膩碜?博研聯(lián)盟論壇

281. ethylene 乙烯本文來自:博研聯(lián)盟論壇 | 282. acetylating agent 乙跖访佬越煌谙撸化劑本文來自:博研聯(lián)盟論壇 | 283. acetic acid 乙酸 本文來自:博研聯(lián)盟論壇

acetylating agent：乙酰化劑HHC化學(xué)化工資源導(dǎo)航

281. ethylene 乙烯HHC化學(xué)化工資源導(dǎo)航 | 282. acetylating agent 乙鮳ww欧美第一页；瘎〩HC化學(xué)化工資源導(dǎo)航 | 283. acetic acid 乙酸 HHC化學(xué)化工資源導(dǎo)航

acetylating substance：乙跹侵轪v综合av一区；镔|(zhì)

acetaldehyde syndrome;乙醛綜合征;; | acetylating substance;乙酰化物質(zhì);; | acetylcodeine;乙跖?6一毛片？纱?;