Harvard College

Ptc Therapeutics, Inc.

Wuming Yan

Jingwei Li

Yoshito Kishi

Zhanjie Li

Kenzo Yahata

Gary Mitchell Karp

Young-Choon Moon

Guangming Chen

Suresh D Babu

Nanjing Zhang

Jana Narasimhan

Anthony A Turpoff

Anuradha Bhattacharyya

Nadiya Sydorenko

Matthew G Woll

Anthony R Mazzotti

Andrew J Kassick

Aleksey I Gerasyuto

Jigar S Patel

Michael Andrew Arnold

Scott J Barraza

Md Rauful Alam

Anthony Turpoff

The present description relates to compounds, forms, and pharmaceutical compositions thereof and methods of using such compounds, forms, or compositions thereof for treating or ameliorating Huntington's disease. In particular, the present description relates to substituted benzothiazole compounds of Formula (I), forms and pharmaceutical compositions thereof and methods of using such compounds, forms, or compositions thereof for treating or ameliorating Huntington's disease.

Heteroaryl compounds for treating Huntington's disease

The present description relates to compounds, forms, and pharmaceutical compositions thereof and methods of using such compounds, forms, or compositions thereof for treating or ameliorating Huntington's disease. In particular, the present description relates to substituted bicyclic heterocyclic and heteroaryl compounds of Formula (I), forms and pharmaceutical compositions thereof and methods of using such compounds, forms, or compositions thereof for treating or ameliorating Huntington's disease.

Heterocyclic and heteroaryl compounds for treating Huntington's disease

The present invention provides unified synthesis of the C1-C19 building blocks of halichondrins and analogs thereof using selective coupling of poly-halogenated nucleophiles in chromium-mediated coupling reactions. The present invention also provides a practical and efficient synthesis of C20-C38 building blocks of halichondrins and analogs thereof. Also provided herein are general methods of selective activation and coupling of poly-halogenated analogs with an aldehyde. The provided coupling reactions are selective for halo-enone and halo-acetylenic ketal over vinyl halide and halide attached to a sp hybridized carbon. The provided efficient selective coupling reactions can allow easy access to the C1-C19 building blocks and C20-C38 building blocks of halichondrins and analogs thereof with limited or no purification or separation of the intermediates. 

Chromium-mediated coupling and application to the synthesis of halichondrins

The present invention provides unified synthesis of the CI-CI 9 building blocks of halichondrins and analogs thereof using selective coupling of poly-halogenated nucleophiles in chromium-mediated coupling reactions. The present invention also provides a practical and efficient synthesis of C20-C38 building blocks of halichondrins and analogs thereof. Also provided herein are general methods of selective activation and coupling of poly-halogenated analogs with an aldehyde. The provided coupling reactions are selective for halo-enone and halo-acetylenic ketal over vinyl halide and halide attached to a sp hydridized carbon. The provided efficient selective coupling reactions can allow easy access to the CI-CI 9 building blocks and C20-C38 building blocks of halichondrins and analogs thereof with limited or no purification or separation of the intermediates.

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Wayne, NJ, United States of America

Wuming Yan