Nettet1-羥基苯並三唑（hobt），白色晶體，是苯並三唑的1h-n被羥基取代的衍生物。 常用作多肽合成中的外消旋化抑制劑。 經典方法用dcc脫水縮合制肽時，由於dcc活性很高，常使底物的手性中心無法在產物中很好地保持。 一般加入羥基苯並三唑等助劑以降低活化酯的活性，從而抑制外消旋化。 Automated peptide synthesis involves the condensation of the amino group of protected amino acids with the activated ester. HOBt is used to produce such activated esters. These esters are insoluble (like the N-hydroxysuccinimide esters) and react with amines at ambient temperature to give amides. HOBt is also used for the synthesis of amides from carboxylic acids aside from …

DCC 99 538-75-0 - Sigma-Aldrich

NettetHOBT Molecular Formula CHNO Average mass 135.123 Da Monoisotopic mass 135.043259 Da ChemSpider ID 68282 More details: Featured data source Names … NettetOxymaPure® is considered as an excellent replacement for HOBt, HOAT, HOOBt, HOPO, Cl-HOBT and other analogues (without change of protocol). OxymaPure® gives results … daltile 1467

Feokromocytom - NHI.no

NettetHemoptyse signaliserer økt infeksjon. Som de fleste infeksjoner, er infeksjoner som fører til hemoptyse oftest lett å behandle. Den økte infeksjonen i et lite område av lungen … Nettet标准物质标准样品信息中心. 电话：13952024364 18905168356. E-Mail：[email protected] 南京亚利达生物技术有限公司 版权所有 苏ICP备15038287号-1苏ICP备15038287号-1 Nettet1. nov. 2011 · To find out what object/table the KEY lock is associated with, I then run the following query using the resource_associated_entity_id obtained from the previous query: SELECT object_name (object_id), partition_id, index_id, partition_number. hobt_id, rows. FROM sys.partitions. WHERE hobt_id=; marine in science