Factors influencing the regioselectivity of reactions involving organocuprate reagents and allyl acylates: synthesis of some phenylthioprostanoids
作者:Stanley M. Roberts、Geoffrey T. Wooley、Roger F. Newton
DOI:10.1039/p19810001729
日期:——
The lactone (4) reacted with the cuprate reagents (5) and (6) under standard conditions to give mainly the products (8) and (12) respectively derived from an SN′anti-process Under the same conditions the lactone (15) reacted with the cuprate reagents (5) and (6) through the SN2 mode primarily to give as the major products the acids (23) and (19) respectively. The compounds (15), (19), and (23) were
内酯(4)在标准条件下与铜酸盐试剂(5)和(6)反应,主要得到分别来自S N '反过程的产物(8)和(12)在相同条件下内酯(15 )通过S N 2模式与铜酸盐试剂(5)和(6)反应,主要分别得到酸(23)和(19)作为主要产物。将化合物(15),(19)和(23)转化为相应的前列腺素A 2类似物(18),(22)和(26)。
Maytansines and maytansine conjugates
申请人:——
公开号:US20030109682A1
公开(公告)日:2003-06-12
Cytotoxin-targeting molecule conjugates comprising cytotoxin and an antibody, growth factor, or polysaccharide together with a pH-sensitive or redox potential-sensitive linker. Novel ansamitocins and recombinant genes and organisms that produce them. The use of the described conjugates in the treatment of cancer and other hyperproliferation diseases.