Comments on Molecules MolBank M48, M88, M89, M92 and M94

Arturo San Feliciano

Depart of Pharmaceutical Chem., Faculty of Pharmacy, University of Salamanca, Av. Campo Charro s/n 37007-Salamanca. Spain. tel 34-923-294528, fax 34-923-294515, e-mail: [email protected]

Received: 13 May 1999 / Published: 20 August 1999

M48 - Numbering seems to be wrong or old. - Distribution of bonds around the methine carbon of the side-chain does not represent a real stereochemical view.

M88 and M89 - names of compounds in titles: numbers (2,3) and greek letters (a, b), denoting position and configuration of the hydroxyl substituents, must be close together (2a,3b-), without spacing and/or "-" in between.

M92 - Same as M94 in reference to the sugar unit. - Name of the compound should be broken at another place and the number 18 is superfluous: (-)-b-D-glucopiranosyl 9,15-dihydroxy-kaurenoate

M94 - Depicted glucose units are a-L, rather than b-D. - Configuration at position 4 of those units is unclear. - One of them is placed at position C-16, not at C-17, as it is stated.

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