6.1
[1]. K L Kirk, et al. Synthesis and adrenergic activity of ring-fluorinated phenylephrines. J Med Chem. 1986 Oct;9(1):198-8.
[]. S Chowdhury, et al. First synthesis of lower-rim-substituted aryl ethers of p-tert-butylcalix[4]arene. J Org Chem. 1 Sep 1;66(19):657-6.
H-H15-H19-H5
P61-P64-P7-P71-P8-P+P5-P4+P4-P5+P51+P8-P-P6+P64-P4+P-P45-P51
GHS7
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