Material Safety Data Sheet Section 1. Identification of the substance Product Name: N-Me-Ala-OtBu HCl Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: N-Me-Ala-OtBu HCl CAS number: 103614-40-0 Section 4. First aid measures Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing contaminated clothing and shoes. If irritation persists, seek medical attention. Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical attention. Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention. Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention. Section 5. Fire fighting measures In the event of a fire involving this material, alone or in combination with other materials, use dry powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus should be worn. Section 6. Accidental release measures Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national standards. Respiratory precaution: Wear approved mask/respirator Hand precaution: Wear suitable gloves/gauntlets Skin protection: Wear suitable protective clothing Eye protection: Wear suitable eye protection Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container for disposal. See section 12. Environmental precautions: Do not allow material to enter drains or water courses. Section 7. Handling and storage Handling: This product should be handled only by, or under the close supervision of, those properly qualified in the handling and use of potentially hazardous chemicals, who should take into account the fire, health and chemical hazard data given on this sheet. Store in closed vessels. Storage: Section 8. Exposure Controls / Personal protection Engineering Controls: Use only in a chemical fume hood. Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles. General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse. Section 9. Physical and chemical properties Appearance: Not specified Boiling point: No data No data Melting point: Flash point: No data Density: No data Molecular formula: C8H17NO2.ClH Molecular weight: 195.7 Section 10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride. Section 11. Toxicological information No data. Section 12. Ecological information No data. Section 13. Disposal consideration Arrange disposal as special waste, by licensed disposal company, in consultation with local waste disposal authority, in accordance with national and regional regulations. Section 14. Transportation information Non-harzardous for air and ground transportation. Section 15. Regulatory information No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302, or have known CAS numbers that exceed the threshold reporting levels established by SARA Title III, Section 313.
Tantalum-Catalyzed Amidation of Amino Acid Homologues
作者:Wataru Muramatsu、Hisashi Yamamoto
DOI:10.1021/jacs.9b08415
日期:2019.12.4
tantalum-catalyzed solvent-free approach for the construction of amide bonds with 1-(trimethylsilyl)imidazole is developed, and the mild reaction conditions are applicable to a wide variety of electrophilic aminoacid homologs. This approach delivers a new class of peptides in high yields without any epimerization.
The present invention provides compounds of Formula I, or pharmaceutically acceptable salts thereof, pharmaceutical compositions thereof, and methods of use thereof for treating cellular proliferative disorders (e.g., cancer).
ANTIBODY DRUG CONJUGATES (ADCS) AND ANTIBODY PRODRUG CONJUGATES (APDCS) WITH ENZYMATICALLY CLEAVABLE GROUPS
申请人:Bayer Pharma Aktiengesellschaft
公开号:US20180169256A1
公开(公告)日:2018-06-21
The present invention relates to novel binder-prodrug conjugates (APDCs) where binders are conjugated with inactive precursor compounds of kinesin spindle protein inhibitors, and to antibody-drug conjugates ADCs and to processes for producing these APDCs and ADCs.
An expedient synthesis of 3-acyltetramic acids of the melophlin family from α-aminoesters and immobilized Ph3PCCO
作者:Rainer Schobert、Carsten Jagusch
DOI:10.1016/j.tet.2005.01.036
日期:2005.2
The naturally occurring 3-acyltetramicacids (3-acylpyrrolidine-2,4-diones) melophlin A, B, C and G were prepared in few steps from α-aminoesters or their hydrochlorides by cyclization with Ph3PCCO under mild conditions. The employment of immobilized, polystyrene-bound ylide greatly simplifies the removal of by-product Ph3PO and of other impurities. Various 3-acylation methods were assessed.
A Building Block Approach for the Total Synthesis of YM‐385781
作者:Yu Zhu、Siyue Liu、Johnny Zigmond、Kevin M. Kaltenbronn、Kendall J. Blumer、Kevin D. Moeller
DOI:10.1002/ejoc.202300365
日期:2023.5.22
A buildingblock approach to the synthesis of YM- and FR-analogs has been developed and utilized for the synthesis of YM-385781. The structure of the final analog was confirmed both spectroscopically and through biological assays, and it was interesting to note that even the less potent synthetic analog made here was able to inhibit both oncogenic Gq signaling and uveal melanoma cell growth.
已开发出合成 YM 和 FR 类似物的构建模块方法,并将其用于 YM-385781 的合成。最终类似物的结构通过光谱和生物测定得到证实,有趣的是,即使是这里制造的效力较低的合成类似物也能够抑制致癌的 Gq 信号传导和葡萄膜黑色素瘤细胞的生长。