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Correction to Molecules 2015, 20(10), 19263-19276.
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Correction

Correction: El-kalyoubi, S.; et al. Novel 2-Thioxanthine and Dipyrimidopyridine Derivatives: Synthesis and Antimicrobial Activity. Molecules, 2015, 20, 19263–19276

by
Samar El-kalyoubi
1,*,
Fatmah Agili
2 and
Shaker Youssif
3,4
1
Organic Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City 11651, Egypt
2
Chemistry Department, Faculty of Science, Jazan University, Jazan (Female Section) 45142, Saudi Arabia
3
Medical Chemistry Division, Faculty of Medicine, Jazan University, Jazan 82621, Saudi Arabia
4
Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44511, Egypt
*
Author to whom correspondence should be addressed.
Molecules 2018, 23(7), 1592; https://doi.org/10.3390/molecules23071592
Submission received: 26 June 2018 / Accepted: 28 June 2018 / Published: 29 June 2018
(This article belongs to the Collection Heterocyclic Compounds)
Versions Notes
The authors wish to make the following changes to their paper [1]. The omitted to put 13C-NMR before the data of three compounds. Also, they repeated the same IR and 13C-NMR data for one compound with the same structure, as well as some minor typing errors. Please note the following:
  • On page 19264, line 31, the sentence “giving 4,5-diminouracil 3” should be replaced with “giving 4,5-diaminouracil 3”.
  • On page 19268, line 11, the sentence “Anal. calcd. for C13H11ClN4OS (306.77): C, 50.90; H, 3.91; N, 18.26” should be replaced with “Anal. calcd. for C13H11ClN4OS (306.77): C, 50.90; H, 3.61; N, 18.26”.
  • On page 19268, lines 14 and 15, the sentence “1H-NMR (DMSO-d6): 10.76 (s, 1H, NH), 8.04–8.01 (d, 1H, J = 1.8, arom.), 7.50–7.50 (m, 1H, J = 1.2, arom.), 7.22–7.19 (d, 1H, J = 8.4, arom.), 7.12–7.07 (m, 1H, J = 7.5, arom.)……” should be replaced with “1H-NMR (DMSO-d6): 10.76 (s, 1H, NH), 8.04–8.01 (d, 1H, J = 1.8, arom.), 7.51–7.50 (m, 1H, arom.), 7.22–7.19 (d, 1H, J = 8.4, arom.), 7.12–7.07 (m, 1H, J = 7.5, arom.)……”.
  • On page 19268, line 29, the sentence “107.11, 113.42, 122.64, 127.89, 136.57, 141.48 (C-S), 149.83, 153.01, 154.23 (C=O) ppm” should be replaced with “107.11, 113.42, 122.64, 127.89, 141.48 (C-S), 146.57, 149.83, 153.01, 154.23 (C=O) ppm”.
  • On page 19268, line 34, the sentence “1H-NMR (DMSO-d6): 13.23 (s, 1H, OH), 10.02 (s, 1H, NH), 7.66–6.64” should be replaced with “1H-NMR (DMSO-d6): 13.23 (s, 1H, OH), 10.02 (s, 1H, NH), 7.66–7.65”.
  • On page 19269, lines 3–5, the sentence “1H-NMR (DMSO-d6): 13.12 (s, 1H, OH), 10.98 (s, 1H, NH), 7.820–7.815 (d, 1H, J = 1.5, arom.), 7.15–7.01 (m, 2H, arom.), 6.87–6.80 (m, 1H, arom.), 4.29 (s, 3H, SCH3), 3.79 (s, 3H, NCH3); 16.21 (SCH3), 28.98 (NCH3), 107.10, 113.41, 122.55, 127.72, 128.17, 136.61, 141.32 (C-S), 149.83, 152.24, 154.13 (C=O) ppm” should be replaced with “1H-NMR (DMSO-d6): 13.12 (s, 1H, OH), 10.98 (s, 1H, NH), 7.82–7.81 (d, 1H, J = 1.5, arom.), 7.15–7.01 (m, 2H, arom.), 6.87–6.80 (m, 1H, arom.), 4.29 (s, 3H, SCH3), 3.79 (s, 3H, NCH3); 13C-NMR (DMSO-d6): δ = 16.21 (SCH3), 28.98 (NCH3), 107.10, 113.41, 122.55, 127.72, 128.17, 136.61, 139.29, 141.32 (C-S), 149.83, 152.24, 154.13 (C=O) ppm”.
  • On page 19269, line 17, the sentence “16.18 (SCH3), 29.38 (NCH3), 44.18 (NCH3), 108.13, 113.27” should be replaced with “13C-NMR (DMSO-d6): δ = 16.18 (SCH3), 29.38 (NCH3), 44.18 (NCH3), 108.13, 113.27”.
  • On page 19269, lines 29–31, the sentence “16.31 (SCH3), 29.27 (NCH3), 44.16 (NCH3), 52.01 (OCH3), 108.13, 111.29, 113.27, 122.42, 127.89, 128.13, 136.57, 141.48 (C-S), 149.83, 153.01, 154.21 (C=O) ppm” should be replaced with “13C-NMR (DMSO-d6): δ = 16.31 (SCH3), 29.27 (NCH3), 44.16 (NCH3), 52.01 (OCH3), 111.29, 118.23, 123.27, 124.42, 127.89, 128.13, 139.51, 141.58 (C-S), 152.83, 153.81, 154.41 (C=O) ppm”.
  • On page 19270, line 10, the sentence “IR (KBr) νmax (cm−1): 3654 (OH), 3076 (CH arom.), 2928 (CH aliph.), 2839 (CH aliph.)” should be replaced with “IR (KBr) νmax (cm−1): 3076 (CH arom.), 2928 (CH aliph.), 2839 (CH aliph.)”.
  • On page 19270, lines 16–19, the sentence “IR (KBr) νmax (cm−1): 3052 (CH arom.), 2830 (CH aliph.), 1674 (C=O), 1627 (C=N); 1H-NMR (DMSO-d6): 7.43–7.41 (m, 1H, arom.), 7.24–7.21 (m, 2H, arom.), 7.18–7.12 (m, 1H, arom.), 4.22 (s, 3H, SCH3), 3.81 (s, 3H, OCH3), 3.68 (s, 3H, NCH3), 3.69 (s, 3H, NCH3); MS: m/z (%) = M+, 316 (21), 302 (100), 287 (13)” should be deleted.
  • On page 19270, line 31, the sentence “91.2, 111.9, 117.2, 126.1, 129.3, 131.3, 162.2 (C=O), 171.1 (C=S) ppm; MS: m/z (%) = M+ + 2” should be replaced with “91.2, 111.9, 117.2, 126.1, 129.3, 151.3, 162.2 (C=O), 171.1 (C=S) ppm; MS: m/z (%) = M+ + 2”.
  • On page 19271, line 9, the sentence “112.1, 117.5, 126.7, 129.6, 131.4, 162.4 (C=O), 171.3 (C=S) ppm” should be replaced with “112.1, 117.5, 126.7, 129.6, 151.4, 162.4 (C=O), 171.3 (C=S) ppm”.
  • On page 19271, line 17, the sentence “117.3, 126.0, 129.2, 131.2, 162.4 (C=O), 171.3 (C=S) ppm” should be replaced with “117.3, 126.0, 129.2, 151.2, 162.4 (C=O), 171.3 (C=S) ppm”.
  • On page 19271, line 26, the sentence “131.3, 132.0, 162.2 (C=O), 171.1 (C=S) ppm; MS: m/z (%) = M+, 418 (1), 377 (5), 97 (12), 91 (100)” should be replaced with “131.3, 152.0, 162.2 (C=O), 171.1 (C=S) ppm; MS: m/z (%) = M+, 418 (1), 377 (5), 97 (12), 91 (100)”.
  • On page 19272, lines 7–10, the sentence “13C-NMR (DMSO-d6): δ = 33.46 (CH), 45.9 (CH3), 125.08, 127.9, 128.2, 128.9, 129.52, 131.20, 161.9 (C=O), 169.8 (C=S) ppm; MS: m/z (%) = M+ + 2, 422 (0.3), M+, 420 (1), 129 (19), 74 (39), 69 (100); Anal. calcd. for C17H14ClN5O2S2 (419.90): C, 48.63; H, 3.63; N, 16.68. Found: C, 49.02; H, 2.86; N, 17.01” should be replaced with “13C-NMR (DMSO-d6): δ = 33.46 (CH), 45.9 (CH3), 95.08, 127.9, 128.2, 128.9, 129.52, 131.20, 161.9 (C=O), 169.8 (C=S) ppm; MS: m/z (%) = M+ + 2, 422 (0.3), M+, 420 (1), 129 (19), 74 (39), 69 (100); Anal. calcd. for C17H14ClN5O2S2 (419.90): C, 48.63; H, 3.36; N, 16.68. Found: C, 49.02; H, 2.86; N, 17.01”.
  • On page 19272, lines 15–17, the sentence “13C-NMR (DMSO-d6): δ = 33.56 (CH), 46.33 (CH3), 125.24, 126.72, 127.45, 128.12, 128.43, 129.21, 129.91, 131.82, 162.40 (C=O), 171.3 (C=S) ppm” should be replaced with “13C-NMR (DMSO-d6): δ = 33.56 (CH), 46.33 (CH3), 95.24, 126.72, 127.45, 128.12, 128.43, 129.21, 129.91, 151.82, 162.40 (C=O), 171.3 (C=S) ppm”.
  • On page 19272, lines 23, 24, the sentence “13C-NMR (DMSO-d6): δ = 33.55 (CH), 46.41 (CH3), 125.27, 128.11, 128.43, 128.93, 129.86, 131.34, 161.93” should be replaced with “13C-NMR (DMSO-d6): δ = 33.55 (CH), 46.41 (CH3), 95.27, 128.11, 128.43, 128.93, 129.86, 151.34, 161.93”.
  • On page 19272, lines 32, 33, the sentence “13C-NMR (DMSO-d6): δ = 33.48 (CH), 45.88 (CH3), 125.16, 127.89, 128.16, 128.91, 129.47, 131.16, 161.89 (C=O), 169.77 (C=S) ppm” should be replaced with “13C-NMR (DMSO-d6): δ = 33.48 (CH), 45.88 (CH3), 95.16, 127.89, 128.16, 128.91, 129.47, 151.16, 161.89 (C=O), 169.77 (C=S) ppm”.
  • On page 19272, lines 37 and 38, the sentence “IR (KBr) νmax (cm−1): 3321 (NH), 3096 (CH arom.), 2901 (CH aliph.), 1684 (C=O), 1580 (C=N), 1141, 1081 (C=S)”; should be replaced with “IR (KBr) νmax (cm−1): 3654 (OH), 3321 (NH), 3096 (CH arom.), 2901 (CH aliph.), 1684 (C=O), 1580 (C=N), 1141, 1081 (C=S)”.
  • On page 19273, lines 2 and 3, the sentence “13C-NMR (DMSO-d6): δ = 33.46 (CH), 45.64 (CH3), 125.02, 127.84, 128.12, 128.76, 129.32, 131.14, 161.85 (C=O), 169.73 (C=S) ppm” should be replaced with “13C-NMR (DMSO-d6): δ = 33.46 (CH), 45.64 (CH3), 95.05, 115.02, 127.84, 128.12, 128.76, 129.32, 131.14, 151.24, 161.85 (C=O), 169.73 (C=S) ppm”.
The authors would like to apologize for any inconvenience caused to the readers by these changes which do not affect the scientific results. The manuscript will be updated and the original will remain online on the article webpage, with a reference to this Correction.

References

  1. El-kalyoubi, S.; Agili, F.; Youssif, S. Novel 2-Thioxanthine and Dipyrimidopyridine Derivatives: Synthesis and Antimicrobial Activity. Molecules 2015, 20, 19263–19276. [Google Scholar] [CrossRef] [PubMed] [Green Version]

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MDPI and ACS Style

El-kalyoubi, S.; Agili, F.; Youssif, S. Correction: El-kalyoubi, S.; et al. Novel 2-Thioxanthine and Dipyrimidopyridine Derivatives: Synthesis and Antimicrobial Activity. Molecules, 2015, 20, 19263–19276. Molecules 2018, 23, 1592. https://doi.org/10.3390/molecules23071592

AMA Style

El-kalyoubi S, Agili F, Youssif S. Correction: El-kalyoubi, S.; et al. Novel 2-Thioxanthine and Dipyrimidopyridine Derivatives: Synthesis and Antimicrobial Activity. Molecules, 2015, 20, 19263–19276. Molecules. 2018; 23(7):1592. https://doi.org/10.3390/molecules23071592

Chicago/Turabian Style

El-kalyoubi, Samar, Fatmah Agili, and Shaker Youssif. 2018. "Correction: El-kalyoubi, S.; et al. Novel 2-Thioxanthine and Dipyrimidopyridine Derivatives: Synthesis and Antimicrobial Activity. Molecules, 2015, 20, 19263–19276" Molecules 23, no. 7: 1592. https://doi.org/10.3390/molecules23071592

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