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笑多会怀孕

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Comparisonof the experimental and theoretical ECD spectra (vaticahainol B),17
application of the olefin cleavage strategy to a known compound to
get ECDs of the newly separated products (uliginoside B,11 laetevirenol
D18), regioselective, and stereospecific transformations of
a hypothetical biogenetic precursor (t)- 3-viniferin ((t)-ampelopsin
A, (t)-vitisin A),19,20 acid-catalyzed skeletal conversion to get
monoalkyl ether of known derivative (shoreaketone),21 and assignment
based on the comparison of AC of D-b-glucopyranosyl
group (hopeaside E)22 were also conducted to achieve the AC
determination.
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818james

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笑多会怀孕: 金币+15 2015-08-31 12:52:45
原文看起来很难懂。文中的17,18,19,直到22,看起来好像应该是一项一项分开的,但文中的标点,括号等又显示不是,如19与20之间只有一个逗号,没有其它内容等等,不知为何?整段文字好像只是一句话,意思是用什么什么等等的方法来确定某物的绝对构型。
2楼2015-07-27 19:35:04
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