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2D Structure
Also known as: Dolcanatide [usan], Unii-wu977t914k, Gtpl10011, Wu977t914k, Hy-p3499, 1092457-65-2
Molecular Formula
C65H104N18O26S4
Molecular Weight
1681.9  g/mol
InChI Key
NSPHQWLKCGGCQR-HLHYUOOASA-N

Dolcanatide is an orally administered analog of the human endogenous natriuretic hormone uroguanylin and guanylate cyclase C (GC-C) agonist, with potential laxative, anti-nociceptive and anti-inflammatory activities. Upon administration, dolcanatide, by mimicking uroguanylin, binds to and activates GC-C locally on endothelial cells in the gastrointestinal (GI) tract, without entering the systemic circulation. Activation of GC-C results in an increase in cyclic guanosine monophosphate (cGMP). Increased concentrations of cGMP lead to the activation of the anion channel cystic fibrosis transmembrane conductance regulator (CFTR). CFTR activation increases the secretion of negatively charged ions, particularly chloride and bicarbonate, into the GI tract lumen, which further drives sodium ions and then water into the lumen. This leads to increased fluid secretion in the GI tract, accelerated transit and changes in stool consistency. In addition, ion channel modulation may decrease muscle contractions and the activity of pain-sensing nerves, thereby decreasing intestinal pain. Also, GC-C may inhibit the secretion of pro-inflammatory cytokines, which may ameliorate GI inflammation. Uroguanylin, a naturally occurring human GI peptide, is a ligand for GC-C and plays a key role in anti-inflammatory processes in the GI tract.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(2R)-2-[[(1R,4S,7S,10S,13S,16R,19S,22S,25R,32S,38R)-10-(2-amino-2-oxoethyl)-25-[[(2S)-4-carboxy-2-[[(2S)-3-carboxy-2-[[(2R)-2,4-diamino-4-oxobutanoyl]amino]propanoyl]amino]butanoyl]amino]-22-(2-carboxyethyl)-32-[(1R)-1-hydroxyethyl]-4-methyl-19-(2-methylpropyl)-3,6,9,12,15,18,21,24,30,33,36-undecaoxo-7,13-di(propan-2-yl)-27,28,40,41-tetrathia-2,5,8,11,14,17,20,23,31,34,37-undecazabicyclo[14.13.13]dotetracontane-38-carbonyl]amino]-4-methylpentanoic acid
2.1.2 InChI
InChI=1S/C65H104N18O26S4/c1-25(2)15-34-55(98)80-41-24-113-110-21-38(58(101)77-37(65(108)109)16-26(3)4)71-44(87)20-69-62(105)50(30(10)84)83-61(104)40(78-51(94)29(9)70-63(106)48(27(5)6)81-57(100)35(18-43(68)86)76-64(107)49(28(7)8)82-60(41)103)23-112-111-22-39(59(102)73-32(53(96)75-34)11-13-45(88)89)79-54(97)33(12-14-46(90)91)72-56(99)36(19-47(92)93)74-52(95)31(66)17-42(67)85/h25-41,48-50,84H,11-24,66H2,1-10H3,(H2,67,85)(H2,68,86)(H,69,105)(H,70,106)(H,71,87)(H,72,99)(H,73,102)(H,74,95)(H,75,96)(H,76,107)(H,77,101)(H,78,94)(H,79,97)(H,80,98)(H,81,100)(H,82,103)(H,83,104)(H,88,89)(H,90,91)(H,92,93)(H,108,109)/t29-,30+,31+,32-,33-,34-,35-,36-,37+,38-,39-,40-,41-,48-,49-,50-/m0/s1
2.1.3 InChI Key
NSPHQWLKCGGCQR-HLHYUOOASA-N
2.1.4 Canonical SMILES
CC1C(=O)NC2CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(CSSCC(NC(=O)CNC(=O)C(NC2=O)C(C)O)C(=O)NC(CC(C)C)C(=O)O)C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N1)C(C)C)CC(=O)N)C(C)C)CC(C)C)CCC(=O)O)NC(=O)C(CCC(=O)O)NC(=O)C(CC(=O)O)NC(=O)C(CC(=O)N)N
2.1.5 Isomeric SMILES
C[C@H]1C(=O)N[C@H]2CSSC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@H](NC(=O)CNC(=O)[C@@H](NC2=O)[C@@H](C)O)C(=O)N[C@H](CC(C)C)C(=O)O)C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)C(C)C)CC(=O)N)C(C)C)CC(C)C)CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CC(=O)O)NC(=O)[C@@H](CC(=O)N)N
2.2 Synonyms
2.2.1 MeSH Synonyms

1. Sp-333

2.2.2 Depositor-Supplied Synonyms

1. Dolcanatide [usan]

2. Unii-wu977t914k

3. Gtpl10011

4. Wu977t914k

5. Hy-p3499

6. 1092457-65-2

7. D-leucine, D-asparaginyl-l-alpha-aspartyl-l-alpha-glutamyl-l-cysteinyl-l-alpha-glutamyl-l-leucyl-l-cysteinyl-l-valyl-l-asparaginyl-l-valyl-l-alanyl-l-cysteinyl-l-threonylglycyl-l-cysteinyl-, Cyclic (4->12),(7->15)-bis(disulfide)

8. Cs-0615000

2.3 Create Date
2015-08-15
3 Chemical and Physical Properties
Molecular Weight 1681.9 g/mol
Molecular Formula C65H104N18O26S4
XLogP3-8.2
Hydrogen Bond Donor Count23
Hydrogen Bond Acceptor Count31
Rotatable Bond Count28
Exact Mass1680.6252002 g/mol
Monoisotopic Mass1680.6252002 g/mol
Topological Polar Surface Area819 Ų
Heavy Atom Count113
Formal Charge0
Complexity3490
Isotope Atom Count0
Defined Atom Stereocenter Count16
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Pharmacology and Biochemistry
4.1 MeSH Pharmacological Classification

Guanylyl Cyclase C Agonists

Compunds that bind to and activate GUANYLYL CYCLASE-C RECEPTORS. (See all compounds classified as Guanylyl Cyclase C Agonists.)