Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2. Отображено 2.
14-07-2023 дата публикации

Alkyne compound, vitamin D compound, analysis method, and production method

Номер: CN116425661A
Автор: NAGATA AKIKO, MIZUMOTO YUKA, SAKAMOTO RYOTA, NAGASAWA KAZUO, TAKIWAKI MASATAKA, KIKUTANI YOSHIKUNI, TAKAHASHI KOJI, FUKUZAWA SEKETSU
Принадлежит:

The invention relates to an alkyne compound, a vitamin D compound, an analysis method and a manufacturing method. The purpose of the present invention is to provide a compound useful for the analysis of a vitamin D compound. The present invention provides an alkyne compound represented by formula (I). [In formula (I), A represents a linear carbon chain having an alkynyl group and a vinyl group at both ends; x1 is CH or 13CH; x2 is any one selected from the group consisting of CHY, CDY, 13CHY, 13CDY, CO, 13CO, C18O, and 13C18O; m is an integer of 1-4, and when m is 2 or more, X2 may be the same as or different from each other; y is any of H, D, NH2, 15NH2, OH, 18OH, SH, OR, O (CO) R, OSO3H, OSO3Na and a sugar substituent, and when two or more Y groups are included in formula (I), Y groups may be the same or different from each other; r is an alcohol protecting group, an alkyl group, an alkenyl group or an aryl group; x3 is C or 13C; and at least one of the X1, the one or more X2, and the ...

Подробнее
Номер записи: 1
11-04-2023 дата публикации

Phosphorus onium compound, kit for derivation, mass spectrometry method, and method for producing phosphorus onium compound

Номер: CN115947757A
Автор: FUKUZAWA SEKETSU, TAKAHASHI KOJI, ITO YOSHIYUKI, TAKIWAKI MASATAKA, TSUDA SHUGO, MOCHIZUKI MASASUKE, YOSHIYA TAKU
Принадлежит:

The invention relates to a phosphorus onium compound, a kit for derivation, a mass spectrometry method, and a method for producing the phosphorus onium compound. The purpose of the present invention is to provide a novel means for improving the ionization efficiency of a compound of interest. [Solution] The present invention provides a phosphorus onium compound represented by formula (I) [in formula (I), R1, R2, and R3 each independently represent an alkyl group or an aryl group, the alkyl group is a substituted or unsubstituted linear or branched alkyl group having 1-20 carbon atoms or a cyclic alkyl group having 5-20 carbon atoms, and the aryl group is a substituted or unsubstituted aryl group having 6-20 carbon atoms; x is a reactive group having a hydrazide group, a halide group or a pseudohalide group, or a thioester group; and Y-is an anion having an overall charge of-1, or Y-is absent. ] ...

Подробнее
Номер записи: 2