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Our synthesis capabilities include preparation of small libraries, cores, scaffolds and building blocks. We also provide synthesis support in the preparation of advanced intermediates, reference compounds and impurities.

Key reaction capabilities

Acylation  Hydrogenation
Alkylation Leuckart reaction
Amidation Mannich reaction 
Aminoacid derivatives Mitsunobu reaction 
Buchwald reaction Oligo-peptide synthesis 
Claisen reaction  Oxidations / reductions 
Curtius rearrangement Reductive amination 
Cyanation Reformatsky reaction
Darzens reaction  Stille coupling
Friedel Crafts alkylation / acylation
Fries migration Suzuki coupling 
Grignard reaction Ullman reaction 
Halogenation Williamson synthesis 
Heck reaction Wittig reaction
 

Special expertise offered in areas like

Synthesis of chiral building blocks and intermediates
Small size aromatic & aliphatic compounds
Heterocyclic chemistry 
Protection of amino acids at amino and carboxyl functionalities
Asymmetric synthesis
Bridged piperazines

List of Scientific Publications
  1. An improved synthesis of N-aryl and N-heteroaryl substituted piperidones

    Tetrahedron Letters Volume 48, Issue 14, 2 April 2007, Pages 2519-2525

    Uwe Schöna, Josef Messingera, M. Buckendahla, M.S. Prabhub and A. Kondab

    a - Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, 30173 Hannover, Germany

    b - Research Support International Limited, S.V. Road, Majiwada, Thane West 400 610, India

    Abstract : An efficient Pd(0)-catalyzed protocol for the rapid and efficient preparation of N-aryl and N-heteroaryl substituted piperidones is described. The two step syntheses proceed with an overall yield of 50–70% using X-Phos as optimal ligand for the Pd(0)-catalyzed Buchwald–Hartwig amination followed by subsequent hydrolysis of resulted ketals.
     
  2. An improved synthesis of 3-aminoestrone

    Tetrahedron Letters Volume 46, Issue 42, 17 October 2005, Pages 7111-7115

    Uwe Schöna, Josef Messingera, Monika Buchholza, Uwe Reineckera, Hubert Tholea, M.S. Prabhub and A. Kondab

    a - Solvay Pharmaceuticals Research Laboratories, Hans-Böckler-Allee 20, 30173 Hannover, Germany

    b - Research Support International Limited, S.V. Road, Majiwada, Thane West 400 610, India

    Abstract : An efficient Pd(0)-catalyzed protocol for the rapid and efficient preparation of 3-aminoestrone via 3-benzylaminoestrone from estrone–triflate is described. The three step synthesis proceeds with an overall yield of about 55% using X-Phos as optimal ligand for the Pd(0)-catalyzed Buchwald–Hartwig amination.

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Research Support International Limited 
(A wholly owned subsidiary of DIL Ltd.)

Copyright 2005-08. All Rights Reserved.

"Success is the maximum utilization of the ability that you have".- Zig Ziglar

 
Publications
  1. An improved synthesis of N-aryl and N-heteroaryl substituted piperidones
     

  2. An improved synthesis of 3-aminoestrone

 
Our Capabilities
  • Multistep synthesis in multigram :

  • Natural product like scaffolds, Heterocyclic Scaffolds, Building blocks, Reference Compounds, Impurities

  • Focussed library using parallel synthesis and automated purification technique

  • Route scouting & Process optimization

  • Scale-up of deliverables (1 gm to 25 kg)

  • Analytical Method Development & Testing

Project Management
  • Dedicated Manager

  • Proactive communication

  • Implementation of high priority project / synthesis

  • Receptive to change of priorities of work plan from customers

  • Weekly update / Biweekly Report / Tele Conference

  • Video conference upon mutual agreement

Other Attributes
  • Logistic Support

    Dedicated Logistics team for end to end support

  • Corporate Citizen

    Public listed parent company

    Strict adherence to HSE

    Employee welfare