Samsung Electronics Co., Ltd.

Cnpharm Co. Ltd.

Aminologics Co., Ltd.

Hojun Kim

Sungbin Hong

Kyungmin Park

Jin-Hee Won

Sejun Park

Daechul Jeong

Jinhee Won

Hongtaek Lim

Kwan-Mook Kim

Geun-Woo Jin

Kwang Sik Park

Kangsoo Kim

Guen-Woo Jin

Jeonghoon Nam

Synthesizing a docetaxel-aconitic anhydride conjugate using docetaxel, including: mixing aconitic anhydride with a chlorinating reagent to produce a first mixture; dissolving the first mixture in an organic solvent to produce a dissolved mixture; stirring the dissolved mixture; evaporating the organic solvent from the dissolved mixture to produce a second mixture; washing the second mixture with an impurity remover to remove impurities and to produce an aconitic anhydride chloride solution; and mixing the docetaxel with the produced aconitic anhydride chloride solution to produce the docetaxel-aconitic anhydride conjugate.

Docetaxel-aconitic anhydride conjugate exhibiting anti-tumor activity without in vivo toxicity

Synthesizing a drug-organic-acid-anhydride conjugate using docetaxel as a drug, including: mixing aconitic anhydride with a chlorinating reagent to produce a first mixture; dissolving the first mixture in an organic solvent to produce a dissolved mixture; stirring the dissolved mixture; evaporating the organic solvent from the dissolved mixture to produce a second mixture; washing the second mixture with an impurity remover to remove impurities and to produce an aconitic anhydride chloride solution; and mixing the docetaxel with the aconitic anhydride chloride solution to produce the drug-organic-acid-anhydride conjugate.

Synthesizing drug-organic-acid-anhydride conjugates without using coupling reagent

A semiconductor device fabricating apparatus includes a gas mixer having an upper surface and a lower surface, each of the upper and lower surfaces has an elliptical plane, and a side surface connecting the upper and lower surfaces, a gas inlet pipe on an upper portion of the gas mixer, and a gas outlet pipe on a lower portion of the gas mixer.

Gas mixer and semiconductor device fabricating apparatuses including the same

The present disclosure relates to an apparatus for preventing noise in an electronic device. An apparatus for preventing noise in an electronic device includes a microphone unit including a microphone, the microphone unit connected to a first power terminal and a second power terminal, and a switch unit including at least one switch and at least one resistance, the switch unit connected to the first power terminal and the microphone in series.

Apparatus for preventing noise in electronic device

An electronic device and noise canceling method thereof is provided. The electronic device may include a housing; at least one output circuit arranged inside the housing and configured to generate a first signal; an opening formed on one side of the housing; a hole connected to the opening; a receptacle arranged inside the hole, and configured to receive an external connector, and electrically connected to the at least one output circuit; at least one sensor arranged within a predetermined proximity range to at least one of the opening and the receptacle; and a control circuit electrically connected electrically to the at least one output circuit, the receptacle, and the at least one sensor, wherein the control circuit is configured to detect the external connector approaching to at least one of the opening and the receptacle using the at least one sensor, to generate a second signal upon detection of the approaching external connector, and to control the at least one output circuit to change the first signal at least partly based on the second signal.

Electronic device and noise canceling method thereof

This invention relates to a method for obtaining optically pure amino acids, including optical resolution and optical conversion. This method significantly shortens the time taken for optical transformation, and enables the repeated use of an organic solution containing a enantioselective receptor, to thereby obtain optically pure amino acids in a simple and remarkably efficient manner, and to enable the very economical mass production of optically pure amino acids.

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Seoul, South Korea

Hojun Kim