commercially and utilized without further purification unless notified.
Sodium methoxide in methanol, N′,N′-dimethyl formamide (anhydrous), N-acetyl-
chloride, 1-octanol, sodium sulphate anhydrous, potassium carbonate,
TFA, acetonitrile, methanol, DCM, chloroform, and water were purchased
from E. Merck Ltd. (India). Among these, solvents were purchased of
HPLC grade. Dulbecco’s modified Eagle’s medium (DMEM),
penicillin, streptomycin sulphate, nystatin, and trypsin–ethylenediaminetetraacetic
acid (EDTA) (10×) were bought from Sigma, USA. Foetal bovine
serum was obtained from GIBCO.
The reactions demanding anhydrous
conditions were carried under
an inert N2 atmosphere. Anhydrous methanol was prepared
by using 4 Å molecular sieves. The reaction temperatures mentioned
denote the temperature of the reaction vessel’s water bath
and not the reaction vessel itself. Aluminium-coated silica gel sheets
(silica gel 60 F, Merck, Germany) were used to run TLC and seen by
potassium permanganate developing solution. ITLC was done to assess
radiocomplexation yield and percentage of radiochemical purity.