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Non-classical benzene bioisosteres


Bioisosteric replacement of various groups is an important technique in the Medicinal Chemist’s toolbox. Replacing a phenyl or benzene ring with a non-classical ring system, rather than just a spacer, can improve physiochemical properties such as passive permeability and aqueous solubility. To see examples see below:
StructureProduct infoAvailabilityQuantity / Price
Catalog IDEN300-295395
Product class Building Block
Namebicyclo[1.1.1]pentan-1-amine hydrochloride
ACD numberMFCD19204065
CAS number22287-35-0
Formula
MW119.6
CLogP0.004
Storage conditions+4
Transport conditionsNormal
EU Rush delivery : (2 business days)
1x5 gUSA Rush delivery(2 business days)
available in New Jersey stock : 4x1 g
Catalog IDEN300-7448135
Product class Building Block
Name3-(difluoromethyl)bicyclo[1.1.1]pentan-1-amine hydrochloride
ACD numberMFCD29767886
CAS number2108549-79-5
Formula
MW169.6
CLogP-0.331
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-132008
Product class Building Block
Name3-(methoxycarbonyl)bicyclo[1.1.1]pentane-1-carboxylic acid
ACD numberMFCD20638314
CAS number83249-10-9
Formula
MW170.2
CLogP0.845
Storage conditionsRT
Transport conditionsNormal
Purity: 95%Global stock:0.2 g(5 business days)  
Catalog IDEN300-53511
Product class Building Block
Name3-(trifluoromethyl)bicyclo[1.1.1]pentane-1-carboxylic acid
ACD numberMFCD20544759
CAS number224584-18-3
Formula
MW180.1
CLogP0.717
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-144843
Product class Building Block
Namebicyclo[2.2.2]octane-1,4-dicarboxylic acid
ACD numberMFCD00498000
CAS number711-02-4
Formula
MW198.2
CLogP0.634
Storage conditionsRT
Transport conditionsNormal
EU Rush delivery : (2 business days)
1x5 g
Catalog IDEN300-109770
Product class Building Block
Name4-(methoxycarbonyl)bicyclo[2.2.2]octane-1-carboxylic acid
ACD numberMFCD18459359
CAS number18720-35-9
Formula
MW212.2
CLogP1.01
Storage conditions+4
Transport conditionsNormal
Purity: 95%Global stock:0.4 g(5 business days)  
Catalog IDEN300-156445
Product class Building Block
Name1,8-dimethyl cubane-1,8-dicarboxylate
ACD numberMFCD00192075
CAS number29412-62-2
Formula
MW220.2
CLogP-1.026
Storage conditions+4
Transport conditionsNormal
Purity: 95%Global stock:0.1 g(5 business days)  
Catalog IDEN300-177922
Product class Building Block
Name4-(trifluoromethyl)bicyclo[2.2.2]octan-1-amine hydrochloride
ACD numberMFCD28023685
CAS number22189-91-9
Formula
MW229.7
CLogP1.474
Storage conditionsRT
Transport conditionsNormal
Purity: 95%Global stock:1.3 g(5 business days)  
Catalog IDEN300-173147
Product class Building Block
Name1-iodo-3-(trifluoromethyl)bicyclo[1.1.1]pentane
ACD numberMFCD30723932
CAS number119934-12-2
Formula
MW262.0
CLogP2.147
Storage conditions-70
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.25 g
Catalog IDEN300-345564
Product class Building Block
Namebicyclo[1.1.1]pentane-1-carbaldehyde
ACD numberMFCD24393552
CAS number117633-03-1
Formula
MW96.1
CLogP0.444
Storage conditionsRT
Transport conditionsNormal
Out of stock 20 working days
Catalog IDEN300-1608565
Product class Building Block
Namebicyclo[1.1.1]pentan-1-ylmethanol
ACD numberMFCD28040494
CAS number22287-32-7
Formula
MW98.1
CLogP1.043
Storage conditions+4
Transport conditionsNormal
 
Catalog IDEN300-23294351
Product class Building Block
Name3-methylbicyclo[1.1.1]pentan-1-ol
ACD numberMFCD31537338
CAS number2091012-43-8
Formula
MW98.1
CLogP0.423
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-6763405
Product class Building Block
Namebicyclo[1.1.1]pentane-1-thiol
ACD numberMFCD31915505
CAS number754149-00-3
Formula
MW100.2
CLogP1.314
Storage conditions+4
Transport conditionsIce pack
 
Catalog IDEN300-83811
Product class Building Block
Namebicyclo[1.1.1]pentane-1-carboxylic acid
ACD numberMFCD19228106
CAS number22287-28-1
Formula
MW112.1
CLogP0.474
Storage conditions+4
Transport conditionsNormal
 
Catalog IDEN300-329105
Product class Building Block
Name{2-oxabicyclo[2.1.1]hexan-1-yl}methanol
ACD numberMFCD30486978
CAS number2060007-65-8
Formula
MW114.1
CLogP-0.537
Storage conditions+4
Transport conditionsNormal
 
Catalog IDEN300-1703642
Product class Building Block
Name(3-fluorobicyclo[1.1.1]pentan-1-yl)methanol
ACD numberMFCD29037345
CAS number262852-01-7
Formula
MW116.1
CLogP0.436
Storage conditions+4
Transport conditionsNormal
 
Catalog IDEN300-173156
Product class Building Block
Name2-{bicyclo[1.1.1]pentan-1-yl}acetic acid
ACD numberMFCD19229645
CAS number131515-31-6
Formula
MW126.2
CLogP1.613
Storage conditions+4
Transport conditionsIce pack
EU Rush delivery : (2 business days)
1x1 gUSA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-1604607
Product class Building Block
Name2-oxabicyclo[2.1.1]hexane-4-carboxylic acid
ACD numberMFCD28650664
CAS number1784145-36-3
Formula
MW128.1
CLogP-0.294
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-7433125
Product class Building Block
Namerac-(1R,3R,4S)-3-hydroxybicyclo[2.1.0]pentane-1-carboxylic acid
ACD number
CAS number2410594-78-2
Formula
MW128.1
CLogP-0.529
Storage conditions-10
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x0.02 g, 1x0.025 g, 1x0.05 g, 1x0.1 g, 1x0.25 g, 1x0.5 g, 1x1 g
Catalog IDEN300-6729668
Product class Building Block
Name1-ethynylcubane
ACD numberMFCD28955445
CAS number163332-93-2
Formula
MW128.2
CLogP1.986
Storage conditions+4
Transport conditionsNormal
 
Catalog IDEN300-253473
Product class Building Block
Name3-fluorobicyclo[1.1.1]pentane-1-carboxylic acid
ACD numberMFCD19228680
CAS number146038-53-1
Formula
MW130.1
CLogP0.317
Storage conditions+4
Transport conditionsIce pack
EU Rush delivery : (2 business days)
1x1 gUSA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-262200
Product class Building Block
Name3-fluorobicyclo[1.1.1]pentan-1-amine hydrochloride
ACD numberMFCD28963742
CAS number1826900-79-1
Formula
MW137.6
CLogP-0.153
Storage conditionsRT
Transport conditionsNormal
 
Catalog IDEN300-6489846
Product class Building Block
Name1-(aminomethyl)-2-oxabicyclo[2.1.1]hexane-4-carbonitrile
ACD numberMFCD31736477
CAS number2247107-84-0
Formula
MW138.2
CLogP-1.03
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-6499583
Product class Building Block
Name1-ethynyl-4-fluorobicyclo[2.2.1]heptane
ACD numberMFCD31794458
CAS number2287310-81-8
Formula
MW138.2
CLogP2.712
Storage conditions-10
Transport conditionsIce pack
Out of stock 20 working days
Catalog IDEN300-7178266
Product class Building Block
Name{4-aminobicyclo[2.2.1]heptan-1-yl}methanol
ACD numberMFCD27987298
CAS number1375000-42-2
Formula
MW141.2
CLogP-0.346
Storage conditionsRT
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-380986
Product class Building Block
Name1-methyl-2-oxabicyclo[2.1.1]hexane-4-carboxylic acid
ACD numberMFCD31691151
CAS number2169582-80-1
Formula
MW142.2
CLogP0.225
Storage conditions+4
Transport conditionsIce pack
EU Rush delivery : (2 business days)
1x5 g
Catalog IDEN300-832814
Product class Building Block
Name4-methyl-2-oxabicyclo[2.1.1]hexane-1-carboxylic acid
ACD numberMFCD31691225
CAS number2168062-80-2
Formula
MW142.2
CLogP0.196
Storage conditions+4
Transport conditionsNormal
EU Rush delivery : (2 business days)
1x1 g
Catalog IDEN300-6996768
Product class Building Block
Name[4-(aminomethyl)-2-oxabicyclo[2.1.1]hexan-1-yl]methanol
ACD numberMFCD31926442
CAS number
Formula
MW143.2
CLogP-1.412
Storage conditionsRT
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-26678497
Product class Building Block
Name[1-(fluoromethyl)-2-oxabicyclo[2.1.1]hexan-4-yl]methanol
ACD number
CAS number2418722-45-7
Formula
MW146.2
CLogP-0.567
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-26624120
Product class Building Block
Namebicyclo[1.1.1]pentane-1-sulfonamide
ACD number
CAS number2413074-53-8
Formula
MW147.2
CLogP-0.826
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-7445610
Product class Building Block
Name3-ethylbicyclo[1.1.1]pentan-1-amine hydrochloride
ACD numberMFCD32199824
CAS number2377031-47-3
Formula
MW147.6
CLogP1.052
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-6481920
Product class Building Block
Name1-methyl-2-oxabicyclo[2.1.1]hexan-4-amine hydrochloride
ACD numberMFCD31668265
CAS number2170372-24-2
Formula
MW149.6
CLogP-0.067
Storage conditionsRT
Transport conditionsNormal
 
Catalog IDEN300-26619896
Product class Building Block
Name1-{2-oxabicyclo[2.1.1]hexan-1-yl}methanamine hydrochloride
ACD numberMFCD32662887
CAS number2413903-70-3
Formula
MW149.6
CLogP-0.46
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-6739968
Product class Building Block
Name{2-oxabicyclo[2.1.1]hexan-4-yl}methanamine hydrochloride
ACD numberMFCD31746555
CAS number2287280-60-6
Formula
MW149.6
CLogP-0.723
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-263444
Product class Building Block
Namemethyl 3-ethynylbicyclo[1.1.1]pentane-1-carboxylate
ACD numberMFCD29763395
CAS number1955554-75-2
Formula
MW150.2
CLogP0.99
Storage conditionsRT
Transport conditionsNormal
 
Catalog IDEN300-53462
Product class Building Block
Name3-(trifluoromethyl)bicyclo[1.1.1]pentan-1-amine
ACD numberMFCD17480480
CAS number262852-08-4
Formula
MW151.1
CLogP0.247
Storage conditionsRT
Transport conditionsNormal
Out of stock 20 working days
Catalog IDEN300-204870
Product class Building Block
Name1-{bicyclo[2.2.2]octan-1-yl}ethan-1-one
ACD numberMFCD24689318
CAS number57032-01-6
Formula
MW152.2
CLogP2.137
Storage conditionsRT
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-219968
Product class Building Block
Name4-methylbicyclo[2.2.2]octane-1-carbaldehyde
ACD numberMFCD24677324
CAS number94994-30-6
Formula
MW152.2
CLogP2.64
Storage conditions-70
Transport conditionsIce pack
 
Catalog IDEN300-23901179
Product class Building Block
Namesodium bicyclo[1.1.1]pentane-1-sulfinate
ACD numberMFCD32702485
CAS number
Formula
MW154.2
CLogP-1.094
Storage conditions-10
Transport conditionsIce pack
 
Catalog IDEN300-6761847
Product class Building Block
Name3-(propan-2-yl)bicyclo[1.1.1]pentane-1-carboxylic acid
ACD numberMFCD30803687
CAS number1886967-55-0
Formula
MW154.2
CLogP1.921
Storage conditionsRT
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-106638
Product class Building Block
Namebicyclo[2.2.2]octane-1-carboxylic acid
ACD numberMFCD00218755
CAS number699-55-8
Formula
MW154.2
CLogP2.151
Storage conditionsRT
Transport conditionsNormal
EU Rush delivery : (2 business days)
1x1 g
Catalog IDEN300-2962790
Product class Building Block
Name{4-aminobicyclo[2.2.2]octan-1-yl}methanol
ACD numberMFCD20617348
CAS number105176-66-7
Formula
MW155.2
CLogP0.213
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-6736397
Product class Building Block
Name2-{1-methyl-2-oxabicyclo[2.1.1]hexan-4-yl}acetic acid
ACD numberMFCD31746052
CAS number2287272-46-0
Formula
MW156.2
CLogP0.195
Storage conditionsRT
Transport conditionsNormal
 
Catalog IDEN300-26866506
Product class Building Block
Name4-ethyl-2-oxabicyclo[2.1.1]hexane-1-carboxylic acid
ACD numberMFCD32692478
CAS number
Formula
MW156.2
CLogP0.725
Storage conditionsRT
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-1273335
Product class Building Block
Name2-oxabicyclo[2.2.2]octane-1-carboxylic acid
ACD numberMFCD28362702
CAS number1447943-57-8
Formula
MW156.2
CLogP0.795
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-7353714
Product class Building Block
Name2-oxabicyclo[2.2.2]octane-4-carboxylic acid
ACD numberMFCD31705694
CAS number2168906-49-6
Formula
MW156.2
CLogP0.401
Storage conditions+4
Transport conditionsNormal
 
Catalog IDEN300-6481913
Product class Building Block
Name[4-(methoxymethyl)-2-oxabicyclo[2.1.1]hexan-1-yl]methanamine
ACD numberMFCD31668261
CAS number2243507-14-2
Formula
MW157.2
CLogP-0.677
Storage conditions+4
Transport conditionsIce pack
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-6902447
Product class Building Block
Name1-[1-(methoxymethyl)-2-oxabicyclo[2.1.1]hexan-4-yl]methanamine
ACD numberMFCD32691784
CAS number2445790-72-5
Formula
MW157.2
CLogP-0.654
Storage conditions+4
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
Catalog IDEN300-298074
Product class Building Block
Name1-ethynyl-3-(trifluoromethyl)bicyclo[1.1.1]pentane
ACD numberMFCD30180978
CAS number1955540-63-2
Formula
MW160.1
CLogP1.474
Storage conditions-10
Transport conditionsIce pack
Out of stock 20 working days
Catalog IDEN300-234103
Product class Building Block
Namebicyclo[2.2.2]octan-1-amine hydrochloride
ACD numberMFCD28009517
CAS number1193-43-7
Formula
MW161.7
CLogP1.681
Storage conditionsRT
Transport conditionsNormal
USA Rush delivery(2 business days)
available in New Jersey stock : 1x1 g
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