Derivatives of glyoxaline-or 4(or 5)-formaldehyde and glyoxaline-4(or 5)-carboxylic acid : a new synthesis of histidine / Frank Lee Pyman.

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Derivatives of glyoxaline-or 4(or 5)-formaldehyde and glyoxaline-4(or 5)-carboxylic acid : a new synthesis of histidine / Frank Lee Pyman. In copyright. Source: Wellcome Collection.