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Synthesis of polyamine‐carbodiimides. — Potential activators for chemical ligations of oligodeoxynucleotide 3′‐phosphates

Synthesis of polyamine‐carbodiimides. — Potential activators for chemical ligations of... Polyamine‐Carbodiimides are new water‐soluble activating agents designed to fit some requirements of chemical ligations of oligodeoxynucleotide 3′‐phosphates. N‐Alkyl‐N′‐(4,9,13‐trimethyl‐4,9,13‐triazatetradecyl)carbodiimides 9 have been prepared from 4,9,13‐trimethyl‐4,9,13‐triazatetradecylamine (2b), a N‐methylated derivative of spermine (2a), via the respective thioureas 8. An efficient total synthesis of the polyamine 2b has been elaborated in which the carbon‐nitrogen framework of 2b is assembled through succesive N‐alkylations of tosylamides as the key steps starting from N‐[4‐(tosylamido)butyl]formamide (4d), N‐(3‐iodopropyl)‐N‐methyl‐p‐toluenesulfonamide (3c), and 1‐bromo‐3‐chloropropane (3a). The polyamine 2b could be obtained via seven steps (3c + 4d → 5a, 5a → 5b, 5b → 5c, 5c + 3a → 6b, 6b → 6d, 6d → 6f, 6f → [6g] → 2b) in 40% overall yield. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png European Journal of Organic Chemistry Wiley

Synthesis of polyamine‐carbodiimides. — Potential activators for chemical ligations of oligodeoxynucleotide 3′‐phosphates

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References (27)

Publisher
Wiley
Copyright
Copyright © 1988 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1434-193X
eISSN
1099-0690
DOI
10.1002/jlac.198819880814
Publisher site
See Article on Publisher Site

Abstract

Polyamine‐Carbodiimides are new water‐soluble activating agents designed to fit some requirements of chemical ligations of oligodeoxynucleotide 3′‐phosphates. N‐Alkyl‐N′‐(4,9,13‐trimethyl‐4,9,13‐triazatetradecyl)carbodiimides 9 have been prepared from 4,9,13‐trimethyl‐4,9,13‐triazatetradecylamine (2b), a N‐methylated derivative of spermine (2a), via the respective thioureas 8. An efficient total synthesis of the polyamine 2b has been elaborated in which the carbon‐nitrogen framework of 2b is assembled through succesive N‐alkylations of tosylamides as the key steps starting from N‐[4‐(tosylamido)butyl]formamide (4d), N‐(3‐iodopropyl)‐N‐methyl‐p‐toluenesulfonamide (3c), and 1‐bromo‐3‐chloropropane (3a). The polyamine 2b could be obtained via seven steps (3c + 4d → 5a, 5a → 5b, 5b → 5c, 5c + 3a → 6b, 6b → 6d, 6d → 6f, 6f → [6g] → 2b) in 40% overall yield.

Journal

European Journal of Organic ChemistryWiley

Published: Apr 16, 1989

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