Anybody have a working method for NTTP in Sitagliptin?

We need your help identifying a method for analysis of NTTP in Sitagliptin…

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Yes we Doctors’ Analytical Labs, Mumbai India is working currently on NTTP by LCMSMS

Dear Sir

We can help you in the same.

Please confirm – you are having LC MS MS ?
Need support in testing – Dr Vidyasagar

23-Sitaglyptin-molecules-27-08581-v4.pdf (2.9 MB)
23-molecules-2039406-supplementary.pdf (2.6 MB)

I think this recent paper provides a good information for first trial analysis.
Especially, eluent B methanol is essential. Do not try to separate NTTP from STG by acetonitrile.

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