... 30.20) 59.58) Vb'” —CH2CH(CH3)2 54.84) 53.6” Vc —CH2CH2CH(CH3)2 50.6” 38.24) a) Ibuprofen from Hokko Chemical Industry Co ... References 1) Part of this paper was presented at the 104th Annual Meeting of the Pharmaceutical Society of Japan, Sendai, March ... 4662 Vol. ...