Welcome to LookChem.com Sign In|Join Free

CAS

  • or

66254-53-3

Post Buying Request

66254-53-3 Suppliers

Recommended suppliersmore

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

66254-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66254-53-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,2,5 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66254-53:
(7*6)+(6*6)+(5*2)+(4*5)+(3*4)+(2*5)+(1*3)=133
133 % 10 = 3
So 66254-53-3 is a valid CAS Registry Number.

66254-53-3Upstream product

66254-53-3Downstream Products

66254-53-3Relevant articles and documents

Oxilorphan and butorphanol. Potent narcotic antagonists and nonaddicting analgesics in the 3,14 dihydroxymorphinan series. Part V

Monkovic,Wong,Pircio,et al.

, p. 3094 - 3102 (1975)

A series of 3,14 dihydroxymorphinans 8 was synthesized via a method of (a) acylation of 3 methoxy Δ84 morphinan 4a (b) stereospecific epoxidation of the resultant amides to β epoxides 5 (c) simultaneous reduction of amide and epoxide functions and (d) demethylation of the resultant 3 methoxy 14 hydroxymorphinans 7. Alternatively deblocking of the amine function in 5b by hydrolysis followed by reduction of the resultant amino epoxide 5e afforded 14 hydroxy 3 methoxymorphinan 7e, which is readily alkylated and demethylated to give various 8. On a basis of interesting pharmacological profiles compounds l 8c (oxilorphan) and l 8d (butorphanol) were selected for clinical studies.

A stereoselective total synthesis of 14-hydroxymorphinans, Grewe approach

Monkovic,Bachand,Wong

, p. 4609 - 4610 (2007/10/10)

-

Process for the preparation of 14-hydroxymorphinans

-

, (2008/06/13)

N-substituted-14-hydroxy-3-substituted-morphinan derivatives have been found to possess potent narcotic agonist or antagonist activity. In particular, the compound 3,14-dihydroxy-N-cyclopropylmethylmorphinan has been found to possess potent agonist-antagonist activity. A new and more efficient total synthesis for the preparation of these compounds is described herein, which improvement comprises using a Schiff base of 4a-(2-aminoethyl)-1,2,3,4,4a,9-hexahydro-6-methoxyphenanthrene to produce 3-methoxy-9-bromo-norhasubanan hydrobromide in substantially improved yields through the intermediate of the formula SPC1

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 66254-53-3