Citation: Zhang Yu Yao, Hao Zhang, Huan Ming Sheng, Xiao Ming Wu, Hong Bin Sun. An unexpected Hoffmann elimination during the alkylation of dihydrotetrabenazine[J]. Chinese Chemical Letters, ;2010, 21(11): 1334-1337. doi: 10.1016/j.cclet.2010.06.022 shu

An unexpected Hoffmann elimination during the alkylation of dihydrotetrabenazine

Center for Drug Discovery, College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China

Received Date: 23 March 2010

Fund Project: This work is partially supported by the "111 Project" from the Ministry of Education of China and the State Administration of Foreign Expert Affairs of China (No.111-2-07).

Dihydrotetrabenazine (DTBZ) is the major pharmacologically active form of tetrabenazine (TBZ), which was approved by FDA for the treatment of chorea associated with Huntington's disease (HD). An unexpected Hoffmann elimination was observed during the treatment of DTBZ with sodium hydrogen and alkyl halides, leading to the formation of both eliminated products (major) and hydroxyl-alkylated products (minor).
- Tetrabenazine,
- Dihydrotetrabenazine,
- Alkylation,
- Hoffmann elimination
1. [1]
  Pengfei Zhang , Qingxue Ma , Zhiwei Jiang , Xiaohua Xu , Zhong Jin . Transition-metal-catalyzed remote meta-C—H alkylation and alkynylation of aryl sulfonic acids enabled by an indolyl template. Chinese Chemical Letters, 2024, 35(8): 109361-. doi: 10.1016/j.cclet.2023.109361
2. [2]
  Junxin Li , Chao Chen , Yuzhen Dong , Jian Lv , Jun-Mei Peng , Yuan-Ye Jiang , Daoshan Yang . Ligand-promoted reductive coupling between aryl iodides and cyclic sulfonium salts by nickel catalysis. Chinese Chemical Letters, 2024, 35(11): 109732-. doi: 10.1016/j.cclet.2024.109732
3. [3]
  Zhilian Liu , Wengui Wang , Hongxiao Yang , Yu Cui , Shoufeng Wang . Ideological and Political Education Design for the Synthesis of Irinotecan Drug Intermediate 7-Ethyl Camptothecin. University Chemistry, 2024, 39(2): 89-93. doi: 10.3866/PKU.DXHX202306012
4. [4]
  Jianhui Yin , Wenjing Huang , Changyong Guo , Chao Liu , Fei Gao , Honggang Hu . Tryptophan-specific peptide modification through metal-free photoinduced N-H alkylation employing N-aryl glycines. Chinese Chemical Letters, 2024, 35(6): 109244-. doi: 10.1016/j.cclet.2023.109244
5. [5]
  Zhirong Yang , Shan Wang , Ming Jiang , Gengchen Li , Long Li , Fangzhi Peng , Zhihui Shao . One stone three birds: Ni-catalyzed asymmetric allenylic substitution of allenic ethers, hydroalkylation of 1,3-enynes and double alkylation of enynyl ethers. Chinese Chemical Letters, 2024, 35(8): 109518-. doi: 10.1016/j.cclet.2024.109518
6. [6]
  Chuyu Huang , Zhishan Liu , Linping Zhao , Zuxiao Chen , Rongrong Zheng , Xiaona Rao , Yuxuan Wei , Xin Chen , Shiying Li . Metal-coordinated oxidative stress amplifier to suppress tumor growth combined with M2 macrophage elimination. Chinese Chemical Letters, 2024, 35(12): 109696-. doi: 10.1016/j.cclet.2024.109696
7. [7]
  Zengchao Guo , Weiwei Liu , Tengfei Liu , Jinpeng Wang , Hui Jiang , Xiaohui Liu , Yossi Weizmann , Xuemei Wang . Engineered exosome hybrid copper nanoscale antibiotics facilitate simultaneous self-assembly imaging and elimination of intracellular multidrug-resistant superbugs. Chinese Chemical Letters, 2024, 35(7): 109060-. doi: 10.1016/j.cclet.2023.109060

Get Citation

PDF

XML

Metrics

PDF Downloads(2)
Abstract views(586)
HTML views(22)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return