Welcome to LookChem.com Sign In|Join Free

CAS

  • or

73154-79-7

Post Buying Request

73154-79-7 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

73154-79-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73154-79-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,5 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73154-79:
(7*7)+(6*3)+(5*1)+(4*5)+(3*4)+(2*7)+(1*9)=127
127 % 10 = 7
So 73154-79-7 is a valid CAS Registry Number.

73154-79-7Upstream product

73154-79-7Relevant articles and documents

Analgesic Dipeptide Derivatives. 3. Synthesis and Structure-Activity Relationships of o-Nitrophenyl-Modified Analogues of the Analgesic Compound H-Lys-Trp(NPS)-OMe

Garcia-Lopez, M. Teresa,Gonzalez-Muniz, Rosario,Molinero, M. Teresa,Naranjo, Jose R.,Rio, J. Del

, p. 1658 - 1663 (2007/10/02)

A series of analogues of the analgesic dipeptide derivative H-Lys-Trp(NPS)-OMe has been designed to determine the influence of the (2-nitrophenyl)sulfenyl (NPS)moiety on the activity.The syntheses and antinociceptive effects of these analogues of general formula H-Lys-Trp(R)-OMe sulfenyl (AacCmES) (13); R = sulfenyl (AacPS) (17); R = tert-butylsulfenyl (t-BuS) (23); R = (2-carbomethoxyethyl)sulfenyl (CmES) (24)> are described.Reaction of Z-Lys(Z)-Trp-OMe (3) with PS-, CmPS-, pNPS-, DNPS-, and AacCmES-Cl afforded the corresponding 2-(sulfenyl)tryptophan derivatives, which on treatment with boron-tris(trifluoroacetate)/trifluoroacetic acid or trimethylsilyl iodide in acetonitrile (Me3SiI/CH3CN) provided 9-13, respectively.Sulfenylation of 3 with NPS-Cl gave Z-Lys(Z)-Trp(NPS)-OMe, which, on catalytic hydrogenation of the nitro group using 10percent Pd/C followed by acetylation of the resulting amino function and removal of the protecting Z group, gave 17.Condensation of 2-(ter-butylsulfenyl)- and 2-tryptophan methyl ester, obtained by reaction of methyl 3a -hydroxy-1,2,3,3a,8,8a-hexahydropyrroloindole-2-carboxylate with the corresponding thiol, with Z-Lys(Z)-OSu afforded Z-Lys(Z)-Trp(t-BuS)-OMe and Z-Lys(Z)-Trp(CmES)-OMe, which on treatment with Me3SiI/CH3CN provided 23 and 24, respectively.Intracerebroventricular administration of 10 elicited a naloxone-reversible antinociceptive effect in mice similar to that of H-Lys-Trp(NPS)-OMe.No analgesia was however found with the phenylsulfenyl or acyclic sulfenyl substituted dipeptides 9, 11, and 17 or 13, 23, and 24.The Trp(DNPS)-containing analogue was neurotoxic.Structure-activity studies indicate that the role of the NPS and CmPS moieties could be related to the adoption of a preferential active conformation.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 73154-79-7