A Short Synthesis of Methyl 3α,7α,12α-Triaminocholanoate, the ‘Triaza-Analogue’ of Methyl Cholate - del Amo, Vicente; Bhattarai, Khadga; Nissinen, Maija; Rissanen, Kari; Pérez-Payán, M Nieves; Davis, Anthony P (Synlett, 2005)