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. 1995 Sep;43(9):1551-7.
doi: 10.1248/cpb.43.1551.

Synthesis of 19-hydroxylated bile acids and identification of 3 alpha,7 alpha,12 alpha,19-tetrahydroxy-5 beta-cholan-24-oic acid in human neonatal urine

T Kurosawa  1 , Y Nomura, R Mahara, T Yoshimura, A Kimura, S Ikegawa, M Tohma
Affiliations

Synthesis of 19-hydroxylated bile acids and identification of 3 alpha,7 alpha,12 alpha,19-tetrahydroxy-5 beta-cholan-24-oic acid in human neonatal urine

T Kurosawa et al. Chem Pharm Bull (Tokyo). 1995 Sep.

Abstract

The synthesis of 19-hydroxylated bile acids (3 alpha,19-dihydroxy-, 3 alpha,7 alpha,19-trihydroxy-, 3 alpha,12 alpha,19-trihydroxy- and 3 alpha,7 alpha,12 alpha,19-tetrahydroxy-5 beta-cholan-24-oic acids) was described. These synthesized 19-hydroxylated bile acids were used as standard samples for the analysis of bile acids in human urine by gas chromatography-mass spectrometry. 3 alpha,7 alpha,12 alpha,19-Tetrahydroxy-5 beta-cholan-24-oic acid was identified in neonatal urines (0.1-1.5 micrograms/ml and 1.5-7% of total bile acids).

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