## Abstract Nefopam hydrochloride (I), an analgesic agent, was labelled with carbon‐13 at C‐1,3,4 and 6 positions for metabolic studies. The starting materials for the synthesis included commercially available phthalic acid‐carboxyl‐^13^C~1~ (II) and 2‐methylaminoethyl‐1,2‐^13^C~2~ alcohol. The ext
Synthesis of 13C, 14C and 2H13C labeled adrenoceptor antagonists: 6-chloro-2,3,4,5-tetrahydro-3-methyl-1H-3-benzazepine hydrochloride and its N-desmethyl analog
✍ Scribed by A. J. Villani; F. Etzkorn; G. A. Rotert; J. R. Heys
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- French
- Weight
- 428 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
The compound 6-chloro-2,3,4,5-tetrahydroi~-methyl-l &3-t#nzazepine (SK&F 86466) was prepared in phenyl-U-C and phenyl-C , labeled forms in a six step sequence beginning with the appropriately labeled benzenes. In addition, the N-desmeJhyl analog of the carbon-1 4 labeled isotopomer and the N-methyl-H derivative of the carbon-I3 isotopomer were prepared via the N-(2,2?&trichloroethyl) carbamates by hydrolysis and lithium aluminum deuteride reduction, respectively. reylyvo r d s: ( H, C)benzazepine, ( C,)benzene, [U-Clbenzene. (.' 3 C ] p e n z a z e p i n yd [ ' 4 C ] b e n z a z e p i n 8 ,
📜 SIMILAR VOLUMES
The complete and unambiguous assignment of the 1H NMR and 13C NMR spectra of 26 N-aralkylsulfonamides, N-sulfonyl-1,2,3,4-tetrahydroisoquinolines and N-sulfonylbenz[c]azepines was performed on the basis of APT, DEPT, homonuclear (gs-COSY) and 1H-detected heteronuclear one-bond (gs-HMQC) and long-ran
## Abstract Various [5,6]pyrano[2,3‐__c__]pyrazol‐4(1__H__)‐thiones were synthesized in high yields by treatment of the corresponding [5,6]pyrano[2,3‐__c__]pyrazol‐4(1__H__)‐ones with Lawesson's reagent. Detailed NMR spectroscopic studies were undertaken of the title compounds. Complete and unambig
## Abstract Reaction of isonicotinic [^14^C] acid hydrazide (**1**) with the Zinke salt (**2**) afforded N‐(4‐pyridyl [^14^C] carbonylimino)pyridinium ylide (**3**) in 81% chemical yield. Sodium borohydride reduction of **3** gave N‐(4‐pyridyl [^14^C] carbonylamino) −1,2,3,6‐tetrahydropyridine (**4
## Abstract The synthesis of [1,3,5‐^13^C~3~]‐ and [2,4,6,7‐^13^C~4~]benzoic acid (5a and 5b) from [2‐^13^C]‐ and [3‐^13^C]sodium pyruvate (1a and 1b), for __in vitro__ and __in vivo__ tracer studies using ^13^C nuclear magnetic resonance (NMR) spectroscopy, is reported. After condensation of 1 to