withaperuvin M 在
cerium(III) chloride heptahydrate 、 sodium tetrahydroborate 作用下,
以
四氢呋喃 、 甲醇 为溶剂,
反应 0.16h,
以59%的产率得到4-epi-physapruin A
参考文献:
名称:
17β-Hydroxywithanolides as Sensitizers of Renal Carcinoma Cells to Tumor Necrosis Factor-α Related Apoptosis Inducing Ligand (TRAIL) Mediated Apoptosis: Structure–Activity Relationships
摘要:
Renal cell carcinoma (RCC) is a cancer with poor prognosis, and the 5-year survival rate of patients with metastatic RCC is 5-10%. Consequently, treatment of metastatic RCC represents an unmet clinical need. Screening of a 50 000 member library of natural and synthetic compounds for sensitizers of RCC cells to TRAIL-mediated apoptosis led to identification of the 17 beta-hydroxywithanolide (17-BHW), withanolide E (1), as a promising lead. To explore structure-activity relationships, we obtained natural and semisynthetic withanolides 1, 2a, 2c, and 3-36 and compared their ability to sensitize TRAIL-mediated apoptosis in a panel of renal carcinoma cells. Our findings revealed that 17-BHWs with a alpha-oriented side chain are superior to known TRAIL-sensitizing withanolides belonging to withaferin A class with a beta-oriented side chain and demonstrated that the 17-BHW scaffold can be modified to enhance sensitization of RCCs to TRAIL-mediated apoptosis, thereby assisting development of natural-product-inspired drugs to treat metastatic RCC.
DOI:
10.1021/acs.jmedchem.7b00069
作为产物:
描述:
withaperuvin E 在
碘 、 三苯基膦 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以62%的产率得到withaperuvin M
参考文献:
名称:
[EN] METHOD OF SENSITIZING CANCER CELLS TO THE CYTOTOXIC EFFECTS OF APOPTOSIS INDUCING LIGANDS IN CANCER TREATMENT [FR] MÉTHODE DE SENSIBILISATION DE CELLULES CANCÉREUSES AUX EFFETS CYTOTOXIQUES DE LIGANDS INDUISANT L'APOPTOSE DANS LE TRAITEMENT DU CANCER