AT306262B - Verfahren zur Herstellung von neuen, in 3- und 21-Stellung oxygenierten 1,2α-Methylen-6,7α-dihalogenmethylen-20-spiroxa-4-enen
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Verfahren zur Herstellung von neuen, in 3- und 21-Stellung oxygenierten 1,2α-Methylen-6,7α-dihalogenmethylen-20-spiroxa-4-enen
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Publication number
AT306262B
AT306262BAT649771AAT649771AAT306262BAT 306262 BAT306262 BAT 306262BAT 649771 AAT649771 AAT 649771AAT 649771 AAT649771 AAT 649771AAT 306262 BAT306262 BAT 306262B
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Application filed by Merck & Co IncfiledCriticalMerck & Co Inc
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Publication of AT306262BpublicationCriticalpatent/AT306262B/de
AT649771A1970-03-191970-05-12Verfahren zur Herstellung von neuen, in 3- und 21-Stellung oxygenierten 1,2α-Methylen-6,7α-dihalogenmethylen-20-spiroxa-4-enen
AT306262B
(de)