Benzyl-(4-(4-methyl-5-(p-tolylsulfonyl)-1,3-thiazol-2-yl)phenyl)carbamate (Blind Test XX)

(Last updated March 2026)

Embedded image

Figure . The molecular diagram of Benzyl-(4-(4-methyl-5-(p-tolylsulfonyl)-1,3-thiazol-2-yl)phenyl)carbamate.

CSP studies

REFCODEOBEQIX
FormulaC25 H22 N2 O4 S2
Common NameBlind Test 2010 XX
IUPAC Systematic NameBenzyl-(4-(4-methyl-5-(p-tolylsulfonyl)-1,3-thiazol-2-yl)phenyl)carbamate
Other Names
CSD RefcodesOBEQIX
Search IdentifierA
ScientistAndrei Kazantsev
Date2010
PublicationBardwell DA, et al. 2011. Acta Crystallogr , Sect B 67, 535-551.; Kazantsev AV, Karamertzanis PG, Adjiman CS, Pantelides CC, Price SL, Galek PTA, Day GM, Cruz-Cabeza AJ 2011. Int J Pharm 418, 168-178. DOI: Open paper (10.1107/S0108768111042868); Open paper (10.1016/j.ijpharm.2011.03.058)
Energy model2
Study_ID11
ProgramsStudy_ID=10, CrystalOptimizer (full convergrence), DMACRYS (2.0.2)
Location on S Drive\\CHEMISTRY_CPOSS\\BlindTest2010\\OBEQIX\\OBEQIX_2
Potential DescriptionDMA/PBE0 6-31G(d,p) + FIT, CryOpt(19)
Intramolecular DescriptionPBE1PBE 6-31G(d,p)
Energy model1
Study_ID10
ProgramsCrystalPredictor, CrystalOptimizer (limited iterations), DMACRYS (2.0.2)
Location on S Drive\\CHEMISTRY_CPOSS\\BlindTest2010\\OBEQIX\\OBEQIX
Potential DescriptionDMA + FIT
Intramolecular DescriptionPBE1PBE 6-31G(d,p)
Search IdentifierB
ScientistLuca Iuzzolino
Date2018
PublicationIuzzolino, L.; McCabe, P.; Price, S. L.; Brandenburg, J. G., Faraday Discussions 2018, 211, 275-296. DOI: Open paper (10.1039/c8fd00010g)
Energy model1
Study_ID60
ProgramsRigid CrystalPredictor, DFTB3-D3, DMACRYS (2.2.0.1)
Location on S Drive\\CHEMISTRY_CPOSS\\LucasSearches\\BlindTest_XX
Potential DescriptionCrystalPredictor, followed by DFTB3-D3 refinement, followed by DMACRYS with GDMA2.2(PBE0/6-31G(d,p)) + FIT
Intramolecular DescriptionPBE1/6-31G(d,p)

Embedded image

Figure . Crystal energy landscape of Benzyl-(4-(4-methyl-5-(p-tolylsulfonyl)-1,3-thiazol-2-yl)phenyl)carbamate from previous work. Left: Study_ID=11, Energy Model A2. Right: Study_ID=60, Energy Model B1.

CSD structures (CSD version 6.01)

Table . Crystallographic information for CSD entries for Benzyl-(4-(4-methyl-5-(p-tolylsulfonyl)-1,3-thiazol-2-yl)phenyl)carbamate. Different polymorphs are coloured differently.

REFCODEspace groupZ’a / Åb / Åc / Åα / °β / °γ / °density / g cm-3Form
OBEQIXP21/n1.014.07796.355925.310090.096.06390.01.4115None

Table . Experimental information for CSD entries for Benzyl-(4-(4-methyl-5-(p-tolylsulfonyl)-1,3-thiazol-2-yl)phenyl)carbamate.

REFCODEspace groupR factorT / KYearComments
OBEQIXP21/n3.9at 150 K2011None

Make this table include whether polymorphs are solution-grown, sublimation grown, templated or otherwise. Add references.

Other notes

I think Study_ID=11 is more iterations of CrystalOptimizer, properly clustered, and cutoff at 200 structures. It’s hard to tell though. It is definitely the submitted structures.

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