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2D Structure
Also known as: Pramlintide acetate [usan], Schembl238214, Unii-726i6te06g, Aco137, 726i6te06g, 25-l-proline-28-l-proline-29-l-proline-, acetate (salt), hydrate
Molecular Formula
C171H269N51O53S2
Molecular Weight
3951  g/mol
InChI Key
NRKVKVQDUCJPIZ-MKAGXXMWSA-N

Pramlintide Acetate is the acetate salt form of pramlintide, a peptide analogue of human amylin with 3 proline substitutions at position 25, 28 and 29, with antihyperglycemic activity. By mimicking amylin, pramlintide slows gastric emptying, inhibits digestive secretions (gastric acid, pancreatic enzymes, and bile), reduces glucagon secretion, and increases satiety; all of these actions are mediated mostly by glucose-sensitive areas in the brain stem. The overall result is a decrease in blood glucose levels. The use of pramlintide may cause an increased risk of insulin-induced hypoglycemia.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(2S)-N-[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-4-amino-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-4-amino-1-[[(2S)-4-amino-1-[[(2S)-1-[[2-[(2S)-2-[[(2S,3S)-1-[[(2S)-1-[(2S)-2-[(2S)-2-[[(2S,3R)-1-[[(2S)-4-amino-1-[[(2S)-1-[[2-[[(2S)-1-[[(2S)-4-amino-1-[[(2S,3R)-1-[[(2S)-1-amino-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]carbamoyl]pyrrolidine-1-carbonyl]pyrrolidin-1-yl]-4-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]carbamoyl]pyrrolidin-1-yl]-2-oxoethyl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-(1H-imidazol-5-yl)-1-oxopropan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-1,4-dioxobutan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]-2-[[(2S,3R)-2-[[(2S)-2-[[(2R)-2-[[(2S,3R)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-4-amino-2-[[(2R)-2-[[(2S)-2,6-diaminohexanoyl]amino]-3-sulfanylpropanoyl]amino]-4-oxobutanoyl]amino]-3-hydroxybutanoyl]amino]propanoyl]amino]-3-hydroxybutanoyl]amino]-3-sulfanylpropanoyl]amino]propanoyl]amino]-3-hydroxybutanoyl]amino]pentanediamide
2.1.2 InChI
InChI=1S/C171H269N51O53S2/c1-21-81(12)130(163(268)207-110(56-78(6)7)169(274)222-53-33-42-118(222)170(275)221-52-32-41-117(221)160(265)219-135(89(20)230)167(272)206-109(66-125(180)238)151(256)212-128(79(8)9)161(266)186-68-126(239)192-111(70-223)154(259)203-107(64-123(178)236)152(257)218-134(88(19)229)166(271)195-98(136(181)241)57-92-43-45-94(231)46-44-92)214-159(264)116-40-31-51-220(116)127(240)69-187-141(246)101(58-90-34-24-22-25-35-90)199-148(253)105(62-121(176)234)201-149(254)106(63-122(177)235)202-155(260)112(71-224)209-156(261)113(72-225)208-146(251)103(60-93-67-184-75-188-93)205-162(267)129(80(10)11)213-150(255)100(55-77(4)5)198-145(250)102(59-91-36-26-23-27-37-91)200-147(252)104(61-120(175)233)196-137(242)82(13)189-144(249)99(54-76(2)3)197-142(247)96(39-30-50-185-171(182)183)193-143(248)97(47-48-119(174)232)194-165(270)132(86(17)227)215-138(243)83(14)190-157(262)114(73-276)211-168(273)133(87(18)228)216-139(244)84(15)191-164(269)131(85(16)226)217-153(258)108(65-124(179)237)204-158(263)115(74-277)210-140(245)95(173)38-28-29-49-172/h22-27,34-37,43-46,67,75-89,95-118,128-135,223-231,276-277H,21,28-33,38-42,47-66,68-74,172-173H2,1-20H3,(H2,174,232)(H2,175,233)(H2,176,234)(H2,177,235)(H2,178,236)(H2,179,237)(H2,180,238)(H2,181,241)(H,184,188)(H,186,266)(H,187,246)(H,189,249)(H,190,262)(H,191,269)(H,192,239)(H,193,248)(H,194,270)(H,195,271)(H,196,242)(H,197,247)(H,198,250)(H,199,253)(H,200,252)(H,201,254)(H,202,260)(H,203,259)(H,204,263)(H,205,267)(H,206,272)(H,207,268)(H,208,251)(H,209,261)(H,210,245)(H,211,273)(H,212,256)(H,213,255)(H,214,264)(H,215,243)(H,216,244)(H,217,258)(H,218,257)(H,219,265)(H4,182,183,185)/t81-,82-,83-,84-,85+,86+,87+,88+,89+,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,113-,114-,115-,116-,117-,118-,128-,129-,130-,131-,132-,133-,134-,135-/m0/s1
2.1.3 InChI Key
NRKVKVQDUCJPIZ-MKAGXXMWSA-N
2.1.4 Canonical SMILES
CCC(C)C(C(=O)NC(CC(C)C)C(=O)N1CCCC1C(=O)N2CCCC2C(=O)NC(C(C)O)C(=O)NC(CC(=O)N)C(=O)NC(C(C)C)C(=O)NCC(=O)NC(CO)C(=O)NC(CC(=O)N)C(=O)NC(C(C)O)C(=O)NC(CC3=CC=C(C=C3)O)C(=O)N)NC(=O)C4CCCN4C(=O)CNC(=O)C(CC5=CC=CC=C5)NC(=O)C(CC(=O)N)NC(=O)C(CC(=O)N)NC(=O)C(CO)NC(=O)C(CO)NC(=O)C(CC6=CN=CN6)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC7=CC=CC=C7)NC(=O)C(CC(=O)N)NC(=O)C(C)NC(=O)C(CC(C)C)NC(=O)C(CCCNC(=N)N)NC(=O)C(CCC(=O)N)NC(=O)C(C(C)O)NC(=O)C(C)NC(=O)C(CS)NC(=O)C(C(C)O)NC(=O)C(C)NC(=O)C(C(C)O)NC(=O)C(CC(=O)N)NC(=O)C(CS)NC(=O)C(CCCCN)N
2.1.5 Isomeric SMILES
CC[C@H](C)[C@@H](C(=O)N[C@@H](CC(C)C)C(=O)N1CCC[C@H]1C(=O)N2CCC[C@H]2C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC3=CC=C(C=C3)O)C(=O)N)NC(=O)[C@@H]4CCCN4C(=O)CNC(=O)[C@H](CC5=CC=CC=C5)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CO)NC(=O)[C@H](CO)NC(=O)[C@H](CC6=CN=CN6)NC(=O)[C@H](C(C)C)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC7=CC=CC=C7)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](C)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCNC(=N)N)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](C)NC(=O)[C@H](CS)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](C)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CS)NC(=O)[C@H](CCCCN)N
2.2 Synonyms
2.2.1 MeSH Synonyms

1. Ac 0137

2. Ac 137

3. Lys-cys-asn-thr-ala-thr-cys-ala-thr-gln-arg-leu-ala-asn-phe-leu-val-his-ser-ser-asn-asn-phe-gly-pro-ile-leu-pro-pro-thr-asn-val-gly-ser-asn-thr-tyr-nh2

4. Pramlintide

5. Pramlintide Acetate

6. Tripro-amylin

2.2.2 Depositor-Supplied Synonyms

1. Pramlintide Acetate [usan]

2. Schembl238214

3. Unii-726i6te06g

4. Aco137

5. 726i6te06g

6. 25-l-proline-28-l-proline-29-l-proline-, Acetate (salt), Hydrate

7. 25-l-proline-28-l-proline-29-l-prolineamylin (human) Acetate (salt), Hydrate

2.3 Create Date
2007-07-03
3 Chemical and Physical Properties
Molecular Weight 3951 g/mol
Molecular Formula C171H269N51O53S2
XLogP3-16.7
Hydrogen Bond Donor Count58
Hydrogen Bond Acceptor Count59
Rotatable Bond Count122
Exact Mass3949.9396798 g/mol
Monoisotopic Mass3948.9363250 g/mol
Topological Polar Surface Area1690 Ų
Heavy Atom Count277
Formal Charge0
Complexity9620
Isotope Atom Count0
Defined Atom Stereocenter Count41
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Information
1 of 2  
Drug NameSymlin
PubMed HealthPramlintide (Injection)
Drug ClassesAntidiabetic
Active IngredientPramlintide acetate
Dosage FormInjectable
RouteSubcutaneous
Strengtheq 1.5mg base/1.5ml (eq 1mg base/ml); eq 2.7mg base/2.7ml (eq 1mg base/ml)
Market StatusPrescription
CompanyAstrazeneca Ab

2 of 2  
Drug NameSymlin
PubMed HealthPramlintide (Injection)
Drug ClassesAntidiabetic
Active IngredientPramlintide acetate
Dosage FormInjectable
RouteSubcutaneous
Strengtheq 1.5mg base/1.5ml (eq 1mg base/ml); eq 2.7mg base/2.7ml (eq 1mg base/ml)
Market StatusPrescription
CompanyAstrazeneca Ab

5 Pharmacology and Biochemistry
5.1 MeSH Pharmacological Classification

Hypoglycemic Agents

Substances which lower blood glucose levels. (See all compounds classified as Hypoglycemic Agents.)