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Table 7 Summary of MetFrag2.2 results for terbutylazine and four isobars

From: MetFrag relaunched: incorporating strategies beyond in silico fragmentation

Name

Terbutylazine

Propazine

Secbutylazine

Triethazine

nButylazinea

CSID

20848

4768

22172

15157

4954587

 

\(S_{C_{{\mathrm{Frag}}}}\)

0.958

0.765

0.997

0.653

1.0

#Peaks explained

11/15

10/15

12/15

8/15

12/15

\(S_{C_{{\mathrm{CSRefs}}}}\)

286

204

56

45

4

ChemAxon log P

1.65

2.75

2.28

1.11

2.31

\(S_{C_{{\mathrm{RT}}}}\) log P

0.159

0.256

0.223

0.103

0.225

ChemAxon log D

1.63

2.75

2.19

0.97

2.23

\(S_{C_{{\mathrm{RT}}}}\) log D

0.249

0.247

0.266

0.192

0.266

Suspect hit

1

1

1

1

0

Substructure hits

2

0

2

1

2

Matches

NC(C)(C)C

NC(C)CC

N[CH\(_{2}\)][CH\(_{3}\)]

NCCCC

 

N[CH\(_{2}\)][CH\(_{3}\)]

 

N[CH\(_{2}\)][CH\(_{3}\)]

 

N[CH\(_{2}\)][CH\(_{3}\)]

\(S_{C_{{\mathrm{Final}}}}\) (log P)

4.22

3.43

3.69

2.53

2.52

\(S_{C_{{\mathrm{Final}}}}\) (log D)

4.56

3.41

3.85

2.87

2.68

Comment

Correct substance

No longer in use

Can co-elute with 20848

  
  1. The predicted log P and log D from the retention time was 3.17 and 2.18 using a training set of 810 substances calculated externally with ChemAxon and added to MetFrag2.2 via the UserLogP option. Included substructure SMARTS were N[CH\(_{2}\)][CH\(_{3}\)], NCCCC, NC(C)CC, NC(C)(C)C
  2. \(^\mathrm{a}\)Name synonym assigned for space reasons. The values in italics indicates the best result per category. Structures overlaid with the included substructure were generated with AMBIT [57]. See text for details and weights